Showing posts with label Nature. Show all posts
Showing posts with label Nature. Show all posts

Hoax? Viral Video Claims Dude Survives Lightning Strike — Twice!

At London's Daily Mail, "How unlucky can you get! Man survives being hit by lightning TWICE in remarkable CCTV footage":

Looks pretty real, but check MSNBC, "Lightning striking twice? Maybe not even once":

The first sign that the video might be fake, according to Vladimir Rakov, electrical engineer and co-director of the University of Florida Lightning Research Group, is that people almost never survive direct lightning strikes like the one shown in the video. "The chance of survival in the case of a direct strike is essentially zero," Rakov told Life's Little Mysteries. That's because lightning bolts emanating from storm clouds convey a gigajoule of energy, he explained — which is about enough to melt a ton of steel.

The vast majority of the 240,000 people who survive lightning strikes worldwide each year do not actually get hit directly. "They are struck by 'side flashes,'" Rakov said. "Lightning might strike a building near them, for example, and there's a side flash that jumps to them carrying a small fraction of the original lightning bolt's energy. In that case, they can survive and even walk away."

Legacy of Hiroshima Heightens Fears in Japan

As we discussed the earthquake and tsunami on Monday in class, I noted that Japan was the world's only country that had previously faced a nuclear holocaust. The potential (and now real) meltdown of nuclear reactors there has an enormous historical significance for the Japanese, beyond the comprehension or experience of any other nation. At WSJ, "Hiroshima's Legacy Heightens Fears":
TOKYO—Mikiso Iwasa was 16 years old when the atomic bomb struck Hiroshima on Aug. 6, 1945. He was in the backyard of his house, a little less than a mile away from ground zero. He was smashed onto the ground by the force of the bomb.

Mr. Iwasa escaped, but the deadly effects of radiation caught up with him later: He suffered from skin cancer twice as well as prostate cancer. He lost his hair. His nose and gums bled. He developed rashes all over his body.

For the only country ever to have experienced the atomic bomb and the horrific effects of concentrated radiation exposure, the nuclear crisis escalating in Japan has had a crippling effect on the nation's collective psyche.