2018-02-24

11 Reasons Chocolate Is Good for You

https://www.thedailybeast.com/11-reasons-chocolates-good-for-you

I am eating 4 to 5 pieces of 85% dark chocolate per day for the supposed health benefits. It is not too high in sugar, with only one gram of sugar per piece. I might get the same benefit from just 2 to 3 pieces.

BTW, I have noticed that eating dark chocolate before playing chess helps. This is probably due to the 15mg of caffeine per piece, but there may be other nutritional benefits for the brain.

2018-02-15

Fwd: Alzheimer's

Researchers have found that gradually depleting an enzyme called BACE1 completely reverses the formation of amyloid plaques in the brains of mice with Alzheimer's disease, thereby improving the animals' cognitive function. The study raises hopes that drugs targeting this enzyme will be able to successfully treat Alzheimer's disease in humans.

2018-01-31

Here’s What The Trumpists Don’t Understand About American Greatness


I agree with the first part, but not the second.  Trying to look at the 1800's as justification for excessive government today seems to me like a poor analogy.  I also think that this is a straw man argument, because there are many myths about the "robber barons."   The second half of the 19nth century saw the greatest period of economic growth in our history.

2017-04-19

Fwd: Fresno



Three people were killed after a man went on a shooting spree in downtown Fresno, California on Tuesday while shouting "God is great" in Arabic before he was tackled and taken into custody, police said.

Fresno Police Chief Jerry Dyer said officers took Kori Ali Muhammad, 39, into custody in connection to the shootings. Dyer said Muhammad went by the nickname "Black Jesus" and shouted "Allahu Akbar" as police tackled him to the ground.

Dyer said at a news conference Muhammad told police that he hates white people, and has made posts against white people and the government on his Facebook page. All of the victims of the shooting rampage on Tuesday were white men, according to police.



2017-03-29

We are entering a new era where a phone can be a real computer.

We are entering a new era where a phone can be a real computer.

I think that this was inevitable.



In this department, Apple has refused to merge their mobile and desktop operating systems, which Microsoft has done and Google has started to do.  Apple would prefer that you spend big bucks to buy separate overpriced devices, but with newer phones becoming as powerful as some laptops, if not more powerful, why bother?

Best wishes,

John Coffey​

2017-01-27

Metallic hydrogen

Metallic hydrogen, once theory, becomes reality.

"This is the holy grail of high-pressure physics," Silvera said. "It's the first-ever sample of metallic hydrogen on Earth, so when you're looking at it, you're looking at something that's never existed before."

To create it, Silvera and Dias squeezed a tiny hydrogen sample at 495 gigapascal, or more than 71.7 million pounds-per-square inch - greater than the pressure at the center of the Earth. At those extreme pressures, Silvera explained, solid molecular hydrogen -which consists of molecules on the lattice sites of the solid - breaks down, and the tightly

​​
bound molecules dissociate to transforms into , which is a metal.

 predictions suggest metallic hydrogen could act as a superconductor at room temperatures.

Among the holy grails of physics, a room temperature superconductor, Dias said, could radically change our transportation system, making magnetic levitation of high-speed trains possible, as well as making electric cars more efficient and improving the performance of many electronic devices.

The material could also provide major improvements in energy production and storage - because superconductors have zero resistance energy could be stored by maintaining currents in superconducting coils, and then be used when needed.

"It takes a tremendous amount of energy to make metallic hydrogen," Silvera explained. "And if you convert it back to molecular hydrogen, all that energy is released, so it would make it the most powerful rocket propellant known to man, and could revolutionize rocketry."

The most powerful fuels in use today are characterized by a "specific impulse" - a measure, in seconds, of how fast a propellant is fired from the back of a rocket - of 450 seconds. The specific impulse for metallic hydrogen, by comparison, is theorized to be 1,700 seconds.

"That would easily allow you to explore the outer planets," Silvera said. "We would be able to put rockets into orbit with only one stage, versus two, and could send up larger payloads, so it could be very important."

https://www.google.com/amp/s/phys.org/news/2017-01-metallic-hydrogen-theory-reality.amp


2016-07-30

The Cut: Visiting New York Showed Me Why I Left


Visiting New York Showed Me Why I Left
The Cut

Nineteen months after moving away, I went back — for "fun," I said. Read the full story


Shared from Apple News



Sent from my iPad