Conservatives: Obama is now coming after our children!
President Obama is going to give the nation's kids a pep talk to work hard in school. According to conservatives, this is a terrible thing.
National Geographic on the state of solar power
The September 2009 issue of National Geographic has a comprehensive series of articles on the state of solar power. Here's the online version of one of the articles. What is the potential of solar power?
"The total power needs of the humans on Earth is approximately 16 terawatts," he said. (A terawatt is a trillion watts.) "In the year 2020 it is expected to grow to 20 terawatts. The sunshine on the solid part of the Earth is 120,000 terawatts. From this perspective, energy from the sun is virtually unlimited."
How to opt out of Google
Are you tired of having your personal life exposed through Google? Now Google is offering an easy option, as reported by Onion Network News: opt out. Google Opt Out Feature Lets Users Protect Privacy By Moving To Remote Village
Some harsh facts for chicken eaters, like me.
Have you ever been to a children's science museum, where the children get to see chicks hatching from eggs? At these educational facilities, we teach our children about the innocence and beauty of the baby chicks. In addition to looking at them hatch, I like to eat chickens and their eggs. I always have. But this article and the undercover video that follows have really put me in a moral quandary.
An animal rights group publicized a video Tuesday showing unwanted chicks being tossed alive into a grinder at an Iowa plant and accused egg hatcheries of being "perhaps the cruelest industry" in the world.I promote this ghastly system whenever I eat the chickens and eggs sold at most grocery stores in the U.S. There's no way around it. Perhaps one solution is to open up chicken factories to school groups, so that the children and their families can learn about the process leading up to that admittedly delicious meal of chicken strips. Then, we can make more informed decisions at the grocery store.
How to slash the cost of sending astronauts to Mars: Don’t bring them back.
How do we cut the cost of sending astronauts to Mars? Lawrence Krauss dares to make this suggestion:
The most challenging impediment to human travel to Mars does not seem to involve the complicated launching, propulsion, guidance or landing technologies but something far more mundane: the radiation emanating from the Sun’s cosmic rays. The shielding necessary to ensure the astronauts do not get a lethal dose of solar radiation on a round trip to Mars may very well make the spacecraft so heavy that the amount of fuel needed becomes prohibitive. There is, however, a way to surmount this problem while reducing the cost and technical requirements, but it demands that we ask this vexing question: Why are we so interested in bringing the Mars astronauts home again?Krauss suggests that we could get many volunteers for a one-way mission, but that we should choose older astronauts, who have already lived most of their lives. Many people would be aghast to read this. But consider that it's a matter of degree, in that we do tolerate consistently high death rates for some jobs, such as combat soldiers and, of all things, pizza delivery:
On-the-job accidents and homicides claimed the lives of 5,524 Americans last year . . . Of that 5,524, only 104 were timber-cutters, but those fatalities represent a death rate nearly 30 times that of a typical workplace. Loggers died at a rate of 117.8 per 100,000 workers, the BLS said, with most of them killed by falling trees. Fishing was the second most dangerous occupation, with 71.1 deaths for every 100,000 workers, followed by pilots and navigators, 69.8, structural metal workers, 58.2, and, perhaps surprisingly, drivers-sales workers, which include pizza delivery drivers at 37.9.