TOM'S SCIENCE & INVENTIVE CHAT BOARD

Tom McKay Board Moderator

| ArchivesPost  |

Thu 01 Nov 2018 08:04:39
Name :TOM W. MCKAY
Email :THE WIZARD...MCKAY_THOMAS@ATT.NET
Message
I WILL BE BACK SOON....BEEN BUSY WITH FAMILY ILLNESSES AND MY OWN 7 MAJOR DISEASES...BUT 'THE WIZARD' IS BETTER NOW AND WE WILL HAVE SOME INTERESTING POSTS UP SOON...TILL THEN, BE HAPPY MARINERS...
Fri 25 May 2018 06:18:23
Name :df
Email :TESS
Message

Among TESS's 20,000 new planets it is expected there will be around 500 less than twice the size of the earth and therefore good places to look for life possibly.

The plan is to look at the 50 most likely to have life carefully and the most interesting will looked over by the Webb telescope.

All this in the stars closet to the earth.

Fasten your seat belts.
Fri 25 May 2018 06:06:41
Name :df
Email :
Message

It's hard to tell what 'really's' point is.

Obviously, sometimes it seems that people "discovered" the new world from virtually every other corner of the earth.

Since you make a remark about history should we limit our examination of the subject to historical events?

History is by definition stuff recorded by writing.

Vikings had essentially no written history so their achievements are "historical" in a broader sense.

Those traveling across the south Pacific also left evidence but no written history.

Those coming across the north pacific also left a lot of evidence but nothing written except Chinese records referring visits to the "Fortunate Isles" which are thought to refer to California and West Mexico.

Olmec culture left evidence of people coming from Africa.

The American north east has evidence of people crossing the North Atlantic.

But in common Western Civilization usage, for whatever reason, Columbus is said to have discovered the New World.

Thu 24 May 2018 10:22:59
Name :really
Email :
Message
Columbus discovered the new world

You certainly are not a historian
Wed 23 May 2018 07:48:24
Name :df
Email :You are there
Message
The TESS space telescope is likely to discover 20,000 semi nearby planets in the next few years.

With the Webb space telescope to further give those discovered planets a closer look, we will are in the same position as just before Columbus discovered the New World.

A process that started with the Ancient Greeks is passing another milestone.

As the old TV show used to say,

"And you are there."

Tue 15 May 2018 10:09:48
Name :df
Email :Elisa Merino
Message
I recently read of the passing of Elisa Merino. She was in my class and one of the most brilliant people I have ever met. I sometimes wondered through the years what had become of this highly intelligent person and am sad to know that she is gone now.
Tue 15 May 2018 10:06:38
Name :df
Email :
Message
Just read Tom's excellent post re recent finds regarding our ancient ancestors. Thank you for the informative post.
Wed 04 Apr 2018 09:44:22
Name :friend
Email :re: Henry
Message
Where is Henry? He isn't answering emails.
Tue 03 Apr 2018 01:43:57
Name :TOM 'THE WIZARD) MCKAY
Email :PHONE VISIT WITH HANK
Message
I HAD A VERY SPECIAL PHONE VISIT WITH HENRY (HANK) THIS AFTERNOON....I DO MISS HIM DEARLY...BE HAPPY

Mon 26 Feb 2018 01:15:49
Name :Thomas W. McKay
Email :Mckay_thomas@att.net
Message
New Evolution Material: The Guardian

Evolution
Oldest known human fossil outside Africa discovered in Israel

Human ancestors left Africa far earlier than previously thought, discovery of prehistoric jawbone and tools suggest

Hannah Devlin Science correspondent @hannahdev

Thu 25 Jan 2018 14.00 EST
Last modified on Wed 14 Feb 2018 16.24 EST

This article is 1 month old
Shares
4,442
The fossil is an upper jawbone with several teeth; stone tools were also found nearby. Dating places the tools and jaw as being between 177,000 and 194,000 years old.
The fossil is an upper jawbone with several teeth; stone tools were also found nearby. Dating places the tools and jaw as being between 177,000 and 194,000 years old.

A prehistoric jawbone discovered in a cave in Israel has prompted scientists to rethink theories of how the earliest human pioneers came to populate the planet, suggesting that our ancestors left Africa far earlier than previously thought.

The fossil, dated to nearly 200,000 years ago, is almost twice as old as any previous Homo sapiens remains discovered outside Africa, where our species is thought to have originated.
Oldest Homo sapiens bones ever found shake foundations of the human story
Read more

Until recently, several converging lines of evidence – from fossils, genetics and archaeology – suggested that modern humans first dispersed from Africa into Eurasia about 60,000 years ago, quickly supplanting other early human species, such as Neanderthals and Denisovans, that they may have encountered along the way.

However, a series of recent discoveries, including a trove of 100,000 year-old human teeth found in a cave in China, have clouded this straightforward narrative. And the latest find, at the Misliya cave site in northern Israel, has added a new and unexpected twist.

“What Misliya tells us is that modern humans left Africa not 100,000 years ago, but 200,000 years ago,” said Prof Israel Hershkovitz, who led the work at Tel Aviv University. “This is a revolution in the way we understand the evolution of our own species.”

The find suggests that there were multiple waves of migration across Europe and Asia and could also mean that modern humans in the Middle East were mingling, and possibly mating, with other human species for tens of thousands of years.

“Misliya breaks the mould of existing scenarios for the timing of the first known Homo sapiens in these regions,” said Chris Stringer, head of human origins at the Natural History Museum in London. “It’s important in removing a long-lasting constraint on our thinking.”

The fossil, a well-preserved upper jawbone with eight teeth, was discovered at the Misliya cave, which appears to have been occupied for lengthy periods. The teeth are larger than average for a modern human, but their shape and the fossil’s facial anatomy are distinctly Homo sapiens, an analysis of the fossil in the journal Science concludes.

Sophisticated stone tools and blades discovered nearby suggest the cave’s inhabitants were capable hunters, who used sling projectiles and elegantly carved blades used to kill and butcher gazelles, oryx, wild boars, hares, turtles and ostrich. The team also discovered evidence of matting made from plants that may have been used to sleep on. Radioactive dating places the fossil and tools at between 177,000 and 194,000 years old.
Quick guide
Piecing together the Homo sapiens timeline
Sign up for Lab Notes - the Guardian's weekly science update
Read more

Hershkovitz said the record now indicates that humans probably ventured beyond the African continent whenever the climate allowed it.

“I don’t believe there was one big exodus out of Africa,” he said. “I think that throughout hundreds of thousands of years [humans] were coming in and out of Africa all the time.”

Reconstructions of the ancient climate records, based on deep sea cores, show that the Middle East switched between being humid and extremely arid, and that the region would have been lush and readily habitable for several periods matching the age of the Misliya fossil.

The idea of multiple dispersals is supported by recent discoveries such as the teeth unearthed in China, human fossils in Sumatra from around 70,000 years ago, archaeological evidence from Northern Australia at 65,000 years and fossils previously discovered near Misliya dating to 90,000-120,000 years ago.

The scenario also raises the possibility that the eastern Mediterranean may have acted as a crossroads for encounters between our own ancestors and the various other human species, such as Neanderthals, who had already reached Europe.

“We’re like a train station that everyone’s passing through,” said Hershkovitz.

Scientists have already shown that interbreeding with Neanderthals, whose lineage diverged from our own 500,000 years ago, occurred some time in the past 50,000 years. As a legacy, modern-day Eurasians carry 1-4% of Neanderthal DNA.

However, a recent analysis of DNA taken from a Neanderthal leg bone found in a German cave hinted at much earlier encounters between the two species, dating back more than 200,000 years. The new fossil adds plausibility to this theory.
An illustration of how the fragment of jaw may have matched with its missing half.

An illustration of how the fragment of jaw may have matched with its missing half. Illustration: Prof Israel Hershkovitz/Handout

“It means modern humans were potentially meeting and interacting during a longer period of time with other archaic human groups, providing more opportunity for cultural and biological exchanges,” said Rolf Quam, Binghamton University anthropology professor and a co-author of the study.

The discovery also raises intriguing questions about the fate of the earliest modern human pioneers. Genetic data from modern-day populations around the world strongly suggest that everyone outside Africa can trace their ancestors back to a group that dispersed around 60,000 years ago. So the inhabitants of the Misliya cave are probably not the ancestors of anyone alive today, and scientists can only speculate why their branch of the family tree came to an end.

Prof David Reich, a geneticist at Harvard University and an expert in population genetics and ancient DNA, said: “It’s important to distinguish between the migration out of Africa that’s being discussed here and the “out-of-Africa” migration that is most commonly discussed when referring to genetic data. This [Misliya] lineage contributed little if anything to present-day people.”

“These early exits are sometimes termed ‘unsuccessful’ or ‘failed’,” said Stringer. “Some of these groups could have gone extinct through natural processes, through competition with other humans, including later waves of modern humans, or they could have been genetically swamped by a more extensive 60,000 year old dispersal.”
Since you’re here …

Mon 19 Feb 2018 09:46:53
Name :Thomas W. McKay
Email :Mckay_thomas@att.net
Message
NO SCIENCE RIGHT NOW...I AM STILL DEPRESSED OVER THE HORRIFIC PARKLAND SHOOTINGS IN FLORIDA....SAD THAT AMERICA HAS COME TO SUCH TRAGIC EVENTS IN OUR SCHOOLS....JEOPARDY IS NOW EVERYWHERE...WHAT CHILD OR STUDENT CAN CONCENTRATE ON STUDIES WITH WORRIES OF 'WHO IS NEXT?' NO HAPPY
Mon 05 Feb 2018 12:56:38
Name :TOM
Email :
Message
WHAT A GREAT POST ABOUT HAWKINS AND RUSH LIMBAUGH. RUSH IS IN THE SEWER WHEN HE ATTEMPS TO PLAY THE SCIENCE GAME. IMO, HE IS UTTERLY CRUD. YES.RUSH IS THE NUMBER 1SEWER STINKER. NO HAPPY
Fri 05 Jan 2018 09:17:59
Name :df
Email :Right wingnuts & Steve Hawking
Message
Interestingly, Trump clone Rush Limbaugh recently attacked Steve Hawking, of all people, over a range of scientific issues. Using all his hate and venom, Limbaugh claimed to know more about various scientific things than Hawking, of which Hawking is widely acknowledged as being one the greatest minds in the history of humanity.

All this in spite of the stone cold fact that the semi-literate Limbaugh is essentially a monkey, with apologies to innocent monkeys, compared to Hawking in the understanding of math and science. You should listen to Limbaugh try to talk about math sometime. He is not only virtually totally ignorant about math, he can barely even read aloud discussions of math stuff. For that matter, there may be animals here who could challenge Limbaugh, and Trump in math.

One particularly buffoonish comment Rush made was ridiculing Hawking’s comment about the possible dangers involved in extra-terrestrial contacts. Rush scoffed at that saying there is no other life out there cause we are just so special. LOL. Hawking has suggested that within a few hundred years we are likely to run into other life forms with bad intentions. Since others can easily detect us as our radio signals traveling through space, within a couple of hundred years our signals are likely to pass hundreds of inhabited planets.

So what are the odds of running into bad actors our there?

Would you like to bet that no malcontent life forms are among those hundreds of various life bearing planets and furthermore are as primitive as we are?
Fri 05 Jan 2018 09:10:29
Name :df
Email :
Message

I just read Tom's last comment and wish you well and a good recovery Tom.
Wed 06 Dec 2017 10:49:27
Name :Coach McKay 1952
Email :Nice Article by Sportswriter Matt Aguilar
Message
Tom McKay is about the size of a junior welterweight. Maybe a full-fledged welter on a day when he eats well. And not because of the cancer or chemo that sometimes gobble up his strength.

Judging by the gaggle of photos that saturate local boxing programs — collections upon collections he often carries around with him from place-to-place — McKay has always been a slim jim.

Thin and wiry, with a West Texas drawl and enough raw enthusiasm to make a child jacked up on sugar look subdued — McKay is an uncontainable force of nature. It’s hard to believe he’s 82 years old.

But he is. At least, he will be on Sunday. To no one’s surprise, he’ll have a party this weekend. And he invited the world. Because, when you’re Tom McKay — and if you have any connection with El Paso boxing whatsoever, you know who Tom McKay is — there’s only one way to live life: thoroughly.

HEART AND SOUL

If this sounds at times more like an obit than a birthday tribute, maybe that’s appropriate. Because, frankly, Tom McKay should’ve been gone a long time ago. He has been suffering from an aggressive form of prostate cancer for 20 years. He was told he didn’t have much time left, and that he’d have to start chemo immediately. It’s hard to imagine this man depressed about anything, but odds are he was depressed on diagnosis day. Afterall, he is human.

At least, that’s the assumption.

But, as many of his fighters possessed the intangibles necessary to overcome adversity, so, too, did McKay. And his ability to shake off the cobwebs, pick himself up off the canvas and move forward with almost zero effect on his sunny disposition or his amazing productivity is a case study in courage.

If only someone could bottle this man’s guts and sell ‘em. They’d be billionaires.

A couple of years after his diagnosis, McKay was still a personal boxing trainer at an East Side gym. Regular joe’s would go in and get some tips from a guy colleagues dubbed the “Wizard.” He looked frail, yeah. But when Tom McKay put on his gloves and showed the novices what real punching looked like, there was a realization that set in - an understanding.
Story from The Coca-Cola Company
How one company is replenishing all the water they use…and then some

This is no weak man. And pity the poor soul who mistook him for one (not that anyone tested that theory) There was a hardness to him. A toughness, behind that exuberant exterior.

And how else would you get through what he’s been through?

THE WIZARD

Besides prostate cancer, he suffers from heart disease. And he has osteonecrosis of the jaw. And there may be a few dozen other ailments as well.

But there’s Tom McKay, MC’ing the El Paso Boxing Hall of Fame he founded. There’s Tom McKay, teaching youngsters how to hook off the jab at his backyard gym. And there’s Tom McKay, excitedly signing a copy of his book, “Magic! Magic! Magic!” — about his former charge, kickboxing legend Cliff “Magic” Thomas.

And there’s Tom McKay, inviting you to his 82nd birthday bash. Signing off with his signature line: “Have a happy.”

He’s been a lot of things. Marine. Policeman. Science teacher. Coach. Author. And one of the most influential boxing people in El Paso’s history.

Mostly, though, he’s been kind, generous with his time and incredibly brave.

Tom McKay, when it comes to heart, the great ones have nothing on you.

Have a happy.

Matthew Aguilar may be reached at maguilarnew@yahoo.com

@MatthewAguilar5 on Twitter
CONNECTTWEET 2 LINKEDIN 1 COMMENTEMAILMORE
Wed 06 Dec 2017 10:46:47
Name :Coach Tom McKay
Email :Mckay_thomas@att.net
Message
UPDATE: I had a severe fracture of my back on Halloween. It is inoperable and I am in pretty dire straits. Constant pain on my 83 year old body.A really bad cold has made me miserable. Slowly getting better. So,Merry Christmas Mariners and a Happy New Year.

Story: By Chihttp://www.elpasotimes.com/story/sports/2016/09/30/el-paso-boxer-study-courage/91323330/cago Writer Matt Aguilar...






Tue 24 Oct 2017 06:28:18
Name :Tom McKay
Email :mckay_thomas@att.net
Message
Stephen Hawking, the Genius, is leaving us a great legacy, his Doctoral thesis at Cambridge...now online. How great that is and how enthusiastic will it be for future scientists who may advance the vast knowledge given to us by Stephen and other excellent men of science. What a Happy
Thu 10 Aug 2017 07:32:16
Name :df
Email :
Message
Hi guys I decided to check out how you guys are doing.

I read that stuff about teleporting through quantum mechanical means. At this point in time there is almost no way to guess future course of the tech to be associated with it. To presume to have an expensive plan is smoke and mirrors. It's felt that to link large massive objects would require epic amounts of energy. Maybe a culture that could harness the total power of it's sun would be in that ballpark. We are a long ways from that level of tech. Those cultures are travelling the stars. I'm still chasing the ice cream truck down the street.

Small things like photons are obviously a different story. Furthermore there are all sorts of other kinds of entanglement.

As for the use of the word "teleporting" it's worth noting that things that are entangled actually are sharing a common location in some way. That's why things seem to happen instantly. They are instant! There is no distance involved as far as whatever type of entanglement is in action.

I can further elaborate on this if anyone cares. I will say that it is much simpler and easy to understand than most people would think.
Wed 05 Jul 2017 05:26:13
Name :THOMAS MCKAY 52
Email :
Message
NICE TIME ON THE PHONE WITH HANK.HAPPY




Thu 04 May 2017 09:58:34
Name :Tom McKay 1952
Email :mckay_thomas@att.net
Message
About FORCE. At my age all I know about force about now ...is that of women, who sure nuff have the FORCE much more years then we men with withering testosterone. Ha, Have a happy
Sun 12 Mar 2017 01:38:53
Name :WRT
Email :pi
Message
How can the force win when the object didn't move?
Mon 27 Feb 2017 10:45:00
Name :to: pi
Email :Unstoppable force vs immovable object
Message

How about;

Nuclear bomb vs granite mountain?

Sat 25 Feb 2017 04:09:06
Name :pi
Email :
Message
rethinking..the force wins 100x over
Sat 25 Feb 2017 04:07:43
Name :pi
Email :
Message
What is the power of the force and what is the lb. of the object and what is the size, weight of the individual you want to stop? Can I have the math equation for this..give me that and I won't need the other stuff.
Sat 25 Feb 2017 04:07:42
Name :pi
Email :
Message
What is the power of the force and what is the lb. of the object and what is the size, weight of the individual you want to stop? Can I have the math equation for this..give me that and I won't need the other stuff.
Thu 29 Dec 2016 05:32:58
Name :Henry
Email :huh?
Message
Tom, you big galoot, what the heck are you talking about.

Wed 28 Dec 2016 06:45:25
Name :Tom 52
Email :100 million birds
Message
Hank, We need to raise a lot of $$$$$$ and send you back to school. 100 million birds??? Shoot, I am the biology and education major...You will be higher and higher if we can pull this deal off. What a happy
Wed 28 Dec 2016 06:39:12
Name :Tom McKay
Email :mckay_thomas@att.net
Message
Henry,Darn exciting news about Mars. I am looking up this HAPPY. MANY THANKS AND LOVE AT YA
Wed 31 Aug 2016 08:34:58
Name :Henry
Email :3.7-billion-year-old fossil makes life on Mars less of a long shot
Message

http://www.msn.com/en-us/news/world/37-billion-year-old-fossil-makes-life-on-mars-less-of-a-long-shot/ar-AAikDjp?OCID=ansmsnnews11

Wed 31 Aug 2016 04:31:54
Name :WRT
Email :
Message
I can't decide whether to ask the chicken or the egg for help with that one.
Sun 14 Aug 2016 10:12:01
Name :fOr YoU
Email :
Message

Unstoppable force vs immovable object. Which one wins? Unstoppable force vs immovable object. Think about it. Unstoppable force vs immovable object. What is the outcome? Unstoppable force vs immovable object. There has to be an answer. Unstoppable force vs immovable object. There is an answer. Unstoppable force vs immovable object. Think.
Wed 06 Jul 2016 09:43:32
Name :Tom McKay 1952
Email :Cancer Cure???
Message
If only. show me the actual facts. I would love to have a cure...too much $$$$$$$$$$$$$$$$$$$$ for that to happen. Have a happy
Mon 04 Jul 2016 01:48:13
Name :2HR CANCER 'FIX'
Email :
Message
Boffin discovers light can be used to destroy tumours in just two hours

He combined a single jab with ultraviolet light that causes cancerous cells to self destruct.
Cancer cells in lab mice were found to self-destruct, with up to 95 per cent dead in two hours.

Professor Matthew Gdovin revealed the cells — which he injected with the chemical compound nitrobenzaldehyde — turned too acidic to survive. He said after patenting his “photodynamic” therapy: “There are many different types of cancers.

“The one thing they have in common is their susceptibility to this induced cell suicide.

“We are thinking outside the box and finding a way to do what for many is simply impossible.” His lab tests showed amazing results against triple negative breast cancer — one of the most aggressive forms.

Just one treatment stopped tumours growing, doubling chances of survival.
Prof Gdovin, of the University of Texas at San Antonio, said that because the treatment is non-invasive it is ideal for hard to reach cancers such as in the spine or heart. It could also be used in patients unable to have more radiation therapy after undergoing the maximum safe amount.
US researchers are probing the use of proteins from anthrax to fight tumours. https://www.thesun.co.uk/news/1385404/light-can-kill-cancer-in-just-two-hours/
Fri 01 Jul 2016 02:59:14
Name :tom mckay 52
Email :
Message
Hi happy July 4
Wed 29 Jun 2016 07:33:34
Name :Henry
Email :100 million birds
Message

Thousands of dinosaur-era bird fossils unearthed: Feathers perfectly preserved in amber are close to 100 million years old.

-Researchers discovered prehistoric feathers preserved in tree amber

-The 99 million-year-old fossils belong to the ancestors of modern birds

-Included are two tiny wings preserved in just a few cubic cm of amber

-They come from an extinct branch of birds called the enantiornithines


Wed 22 Jun 2016 01:03:26
Name :Beam me up, Scotty!
Email :
Message
Russia aims to develop 'teleportation' in 20 years

22 June 2016

It’s a question that physicists, philosophers, and science fiction writers have pondered for decades: how to travel from one place to another without travelling through the space in between.

Now a Kremlin-backed research program is seeking to make the teleportation technology behind Captain Kirk’s transporter a reality.

A proposed multi-trillion pound strategic development program drawn up for Vladimir Putin would seek to develop teleportation by 2035.

"It sounds fantastical today, but there have been successful experiments at Stanford at the molecular level," Alexander Galitsky, a prominent investor in the country's technology sector, told Russia's Kommersant daily on Wednesday. "Much of the tech we have today was drawn from science fiction films 20 years ago."

http://www.telegraph.co.uk/news/2016/06/22/russia-aims-to-develop-teleportation-in-20-years/


Tue 21 Jun 2016 08:15:08
Name :Tom 52
Email :The Heat is on. Not a happy
Message
110 Degrees Fahrenheit in Beverly Hills? Whoa horsefly, my world is changing way too fast. The good news: My wife Leticia took me out for dinner and a couple of bands, one a Mexican rock band and the other the 'We B fore' Classic Rock band.' Both were excellent but 'We B Fore' was superb. We danced more in three hours than we have in the past ten years. A great Father's day to say the least. Have a happy
Tue 21 Jun 2016 08:14:46
Name :Tom 52
Email :Te heat is on. Not a happy
Message
110 Degrees Fahrenheit in Beverly Hills? Whoa horsefly, my world is changing way too fast. The good news: My wife Leticia took me out for dinner and a couple of bands, one a Mexican rock band and the other the 'We B fore' Classic Rock band.' Both were excellent but 'We B Fore' was superb. We danced more in three hours than we have in the past ten years. A great Father's day to say the least. Have a happy
Thu 09 Jun 2016 07:48:33
Name :Tom McKay 1952
Email :Uh Oh is right and MORE
Message
Uh Oh, Check out Ampicillin combined with Clavulonate and get worried. Since 1984 this drug has led to serious liver damage and even a leading cause of death in senior citizens over 65. I nearly died from vomiting and diarrhea due to this menace two weeks ago. I went to the ER twice and was hospitalized for four more days. What BS and a sham that we are subject to so many damning bad meds. Not a happy
Wed 01 Jun 2016 02:54:06
Name :Uh-oh
Email :
Message
Research: Use Of Many Over-The-Counter Cold Medications Linked To Dementia...

Use of an antihistamine known as diphenhydramine, which is commonly sold as Benadryl, Tylenol PM, Advil PM, and ZZZQuil, and included in many over-the-counter medications for cold and allergies, may increase the risk of dementia and even cause irreparable harm.

http://newyork.cbslocal.com/2016/05/31/study-benadryl-dementia/
Sat 28 May 2016 10:55:38
Name :Tom 52
Email :ER Etc.
Message
Damn, Bad medical stuff lately. worried somewhat. Losing weight. Ouchy! Hank, loan me a few pounds. Have a happy
Fri 06 May 2016 10:58:33
Name :Tom McKay
Email :mckay_thomas@att.net
Message
Hot Diggity Dog, The Kentucky Derby is Tomorrow. I will have a happy
Tom
Thu 21 Apr 2016 10:41:20
Name :Tom 52
Email :Sugar On My Mind
Message
Gosh, I'm staying with real sugar. Yikes! Not a happy
Sat 12 Mar 2016 12:59:19
Name :Splenda linked to Leukemia
Email :
Message
Splenda linked to Leukemia, new study finds

One of the most popular sugar alternatives could lead to very dangerous side effects.

The artificial sweetener sucralose – which is found in the ubiquitous yellow packets of Splenda – is being linked to leukemia, according to a study published by the International Journal of Occupational and Environmental Health.

Mice that were fed sucralose daily for their entire lives developed leukemia and other blood cancers.

Here at Health Nut News we’ve talked extensively about the dangers of artificial sweeteners and how studies show they can make you fat, but now forget obesity- we’ve got cancer.

Nutrition watchdog group Center for Science in the Public Interest is formally recommending that consumers avoid sucralose. Artificial sweetener Splenda is sucralose-based.

It’s a big deal considering this is the same company that listed sucralose as a safe alternative to sugar prior to the new research findings.

Sucralose can be found in over 4,500 products,according to the study.

The sucralose case study was funded without special interests, unlike the majority of case studies for food additives.

For most food additives, the safety studies are conducted by the manufacturers who have financial incentives,” said Lisa Lefferts, senior scientist at the CSPI reports Eatclean.com.

Even if you don’t splurge on Splenda, you could still potentially see adverse effects.

“When something causes cancer at high doses, it generally causes cancer at lower doses, the risk is just smaller,” Lefferts said.

Skeptics of the new study are still being warned about the adverse effects of artificial sweeteners. New research shows artificial sweeteners cause weight gain, not weight loss, and diet soda can lead to an increase in belly fat, reports Eatclean.com.

http://www.healthnutnews.com/splenda-linked-to-leukemia-study-finds/
Tue 08 Mar 2016 11:24:34
Name :Tomorrow - Wednesday
Email :
Message

Total Solar eclipse, SuperMoon, and Asteroid TX68 whizzes by earth, all in a 24 hour period on March 9th.
Sun 07 Feb 2016 01:00:48
Name :Potato power
Email :
Message
(Sorry such a long post but since no one has posted in a while I figured it would be ok this time.)

Potato power: the spuds that could light the world

For the past few years, researcher Rabinowitch and colleagues have been pushing the idea of “potato power” to deliver energy to people cutoff from electricity grids. Hook up a spud to a couple of cheap metal plates, wires and LED bulbs, they argue, and it could provide lighting to remote towns and villages around the world.

They’ve also discovered a simple but ingenious trick to make potatoes particularly good at producing energy. “A single potato can power enough LED lamps for a room for 40 days,” claims Rabinowitch, who is based at the Hebrew University of Jerusalem.

The idea may seem absurd, yet it is rooted in sound science. Still, Rabinowitch and his team have discovered that actually launching potato power in the real world is much more complex than it first appears.

While Rabinowitch and team have found a way to make potatoes produce more power than usual, the basic principles are taught in high school science classes, to demonstrate how batteries work.

To make a battery from organic material, all you need is two metals – an anode, which is the negative electrode, such as zinc, and a cathode, the positively charged electrode, such as copper. The acid inside the potato forms a chemical reaction with the zinc and copper, and when the electrons flow from one material to another, energy is released.

1This was discovered by Luigi Galvani in 1780 when he connected two metals to the legs of a frog, causing its muscles to twitch. But you can put many materials between these two electrodes to get the same effect. Alexander Volta, around the time of Galvani, used saltwater-soaked paper. Others have made “earth batteries” using two metal plates and a pile of dirt, or a bucket of water.

Super spuds

Potatoes are often the preferred vegetable of choice for teaching high school science students these principles. Yet to the surprise of Rabinowitch, no one had scientifically studied spuds as an energy source. So in 2010, he decided to give it a try, along with PhD student Alex Goldberg, and Boris Rubinsky of the University of California, Berkeley.

“We looked at 20 different types of potatoes,” explains Goldberg, “and we looked at their internal resistance, which allows us to understand how much energy was lost by heat.”

They found that by simply boiling the potatoes for eight minutes, it broke down the organic tissues inside the potatoes, reducing resistance and allowing for freer movement of electrons– thus producing more energy. They also increased the energy output by slicing the potato into four or five pieces, each sandwiched by a copper and zinc plate, to make a series. “We found we could improve the output 10 times, which made it interesting economically, because the cost of energy drops down,” says Goldberg.

“It’s low voltage energy,” says Rabinowitch, “but enough to construct a battery that could charge mobile phones or laptops in places where there is no grid, no power connection.”

Their cost analyses suggested that a single boiled potato battery with zinc and copper electrodes generates portable energy at an estimated $9 per kilowatt hour, which is 50-fold cheaper than a typical 1.5 volt AA alkaline cell or D cell battery, which can cost $49–84 per kilowatt hour. It’s also an estimated six times cheaper than standard kerosene lamps used in the developing world.

Which raises an important question – why isn’t the potato battery already a roaring success?

In 2010, the world produced a staggering 324,181,889 tonnes of potatoes. They are the world’s number one non-grain crop, in 130 countries, and a hefty source of starch for billions around the world. They are cheap, store easily, and last for a long time.

With 1.2 billion people in the world lacking access to electricity, a simple potato could be the answer– or so the researchers thought. “We thought organisations would be interested,” says Rabinowitch. “We thought politicians in India would give them out with their names inscribed on them. They cost less than a dollar.”

Soac4Yet three years on since their experiment, why haven’t governments, companies or organisations embraced potato batteries? “The simple answer is they don’t even know about it,” reasons Rabinowitch. But it may be more complicated than that.

First, there’s the issue of using a food for energy. Olivier Dubois, senior natural resources officer at the United Nations Food and Agriculture Organisation (FAO), says that using food for energy – like sugar cane for biofuels – must avoid depleting food stocks and competing with farmers.

“You first need to look at: are there enough potatoes to eat? Then, are we not competing with farmers making income from selling potatoes?” he explains. “So if eating potatoes is covered, selling potatoes is covered, and there’s some potatoes left, then yes, it can work”

In a country like Kenya, the potato is the second most important food for families after maize. Smallholder farmers produced around 10 million tonnes of potatoes this year, yet around 10-20% were lost in post-harvest waste due to lack of access to markets, poor storage conditions, and other issues, according to Elmar Schulte–Geldermann, potato science leader for sub–Saharan Africa at the International Potato Center in Nairobi, Kenya. The potatoes that don’t make it to the market could easily be turned into batteries.

Pithy answer

Yet in Sri Lanka, for instance, the locally available potatoes are rare and expensive. So a team of scientists at the University of Kelaniya recently decided to try the experiment with something more widely available, and free – plantain piths (stems).

Physicist KD Jayasuriya and his team found that the boiling technique produced a similar efficiency increase for plantains – and the best battery performance was obtained by chopping the plantain pith after boiling.

With the boiled piths, they found they could power a single LED for more than 500 hours, provided it is prevented from drying out. “I think the potato has slightly better current, but the plantain pith is free, it’s something we throw away,” says Jayasuriya.

Despite all this, some are sceptical of the feasibility of potato power. “In reality, the potato battery is essentially like a regular battery you’d buy at the store,” says Derek Lovley at the University of Massachusetts, Amherst. “It’s just using a different matrix.” While the potato helps to prevent energy being lost to heat, it is not the source of the energy – that’s actually extracted via the corrosion of the zinc. “It’s sacrificial – the metal is degrading over time,” says Lovley. This means you’d have to replace the zinc – and of course the potato or plantain pith – over time.

Still, zinc is quite cheap in most developing countries. And Jayasuriya argues that it could still be more cost effective than a kerosene lamp. A zinc electrode that lasts about five months would cost about the same as a litre of kerosene, which fuels the average family home in Sri Lanka for two days. You could also use other electrodes, like magnesium or iron.

But potato advocates must surmount another problem before their idea catches on: consumer perception of potatoes. Compared with modern technologies like solar power, potatoes are perhaps less desirable as an energy source.

Gaurav Manchanda, founder of One Degree Solar, which sells micro-solar home systems in Kenya, says people buy their products for more reasons than efficiency and price. “These are all consumers at the end of the day. They need to see the value in it, not only in terms of performance, but status,” he explains. Basically, some people might not want to show off their potato battery to impress a neighbor.

Still, it cannot be denied that the potato battery idea works, and it appears cheap. Advocates of potato power will no doubt continue to keep chipping away.

http://www.allselfsustained.com/potato-power-the-spuds-that-could-light-the-world/
Fri 08 Jan 2016 07:56:08
Name :Tom McKay
Email :2016
Message
A belated happy and prosperous New Year 2016 to all Mariners, Have a happy

Notice: Undefined offset: 47 in /home/mvalumni/public_html/boards/sciencebd2/view.php on line 47