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Monday, August 22, 2016

Dog Eyes Ball - Amusing

"Now that is a work of art!"
Funny Animal Pictures
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GREAT TENNIS BALL
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Physics Ties Gunshot Residue to Cartridges

New technology pins criminals to gun crimes.>
It is getting more difficult for criminals to get away with breaking the law. If a gun is used it is now possible to match the gunshot residue to specific bullet cartridges. A criminal will probably keep some unused cartridges at his/her home. The shooter will have residue on this body and the gun anyway.
Gun being fired
Each batch of bullets has a different chemical makeup. Differing amounts of glass fragments is the main difference. Sensitive High Resolution Ion Microprobe (SHRIMP) and Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) provide extremely detailed analysis of gunshot residue.

When a gun is fired, residue to splattered everywhere, on the shooter, the victim and in the wound itself. There is no way of destroying the evidence. Residue can be matched with bullets at a certainty of 99 per cent. It is possible that some innocent people jailed for crimes will be shown to be not guilty with the used of the new technology.
Physics by Ty Buchanan 
 
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SHOOTERS BEWARE
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Thursday, August 18, 2016

New Theory - Tuberculosis Arose From Adoption of Fire

Fire caused tuberculosis according to new archaeological theory.
Evolution is very powerful. A change in climate leads to the survival of those who suit the new climate more adequately. A series of ice ages meant hairy people with narrow nasal passages (to warm the damaging cold air on it way into the lungs) passed on their genes. People living in central Africa remained in a warm climate, so they did not have to adapt.
Ancient man uses fire
A new premise is that the adoption of fire by early humans caused the emergence of tuberculosis. Apparently, many people crouching around a fire set the ideal conditions for TB to take hold. Just a minute though. Didn't Africans also cook meat on fires and kept near to it for warmth on cold nights? They certainly did. No, this new theory does not hold up.

It is assumed that TB is mainly a thing of cold climates.  More correctly, molecular archaeological evidence shows that TB began in Africa. Just how scientists reached the conclusion that humans passed it on to animals is beyond me, though. This is pie in the sky stuff, mere speculation.

Man has been using fire for at least 200,000 years. This is obvious. Scientists say TB appeared anywhere from 70,000 to 6,000 years ago. Such debate about the correct time of its occurrence means a lot of work has to be done before TB can be linked to fire.
Anthropology by Ty Buchanan 
 
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FIRE DISEASE
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Monday, August 15, 2016

Vegemite Beer Could be the New Product

Vegemite beer could be good for society.
There is a myth about Vegemite. It is assumed by many Australians to be unique. This isn't the case. Marmite and Bovril are the same product. It is yeast residue, the stuff at the bottom of the container when you brew your own beer with a lot of salt added.
Prison Vegemite beer
Of course, the yeast is dormant and can still be activated. This is the case despite Vegemite spread being sterilized. The tasty "treat" is banned in Victorian prisons because it can be used to make an alcoholic concoction loosely called beer. Scientists actually made beer with Vegemite to prove that this is possible. Vegemite acted as a booster in the fermentation process. This made it possible for basic raw materials to be used to make beer.

There is one proviso: some natural yeast has to be obtained from somewhere else. Yeast naturally occurs on the skin of fruit and berries, so it is easy to get.  Just get some flour and add water.  It will start fermenting in a few days, so the prison ban is meaningless.

Ironically, a liter of Vegemite beer costs $0.24 to make. This compares to $1.28 for commercial beer. There could be a whole new market out there for an entrepreneur to begin manufacturing Vegemite beer for the ordinary consumer.
Chemistry by Ty Buchanan 
 
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