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66: the weight, in pounds, this Korean-made robotic exoskeleton can help shipbuilders lift.

209: area, in square miles, that have been burned by wildfires in California since last week. The fires destroyed at least eight homes and disrupted SETI’s search for extraterrestial life.

58: percent of California already said to be in “exceptional drought”, which will exacerbate the risk of wildfires.

Last Transmission

The Allen Telescope Array’s webcam sent this transmission on August 2 at 7:43 p.m., just before the Internet went out.

34,000: speed, in miles per hour, at which both the Rosetta spacecraft and the comet 67P/Churyumov-Gerasimenko are circling the Sun, somewhere between the orbits of Mars and Jupiter.

The View From Rosetta

200,000: estimated number of casualties caused by the bombings of Hiroshima and Nagasaki almost 70 years ago. After the bombings, Popular Science published a statement that discussed the long-term implications of the “Annihilation Bomb.”

Bomb Effects

From the September 1945 issue of Popular Science.

160 degrees Fahrenheit: the temperature of the Grand Prismatic Spring in Yellowstone National Park. A camera-equipped drone crashed into the 121-foot-deep water this week.

Grand Prismatic Spring, Yellowstone National Park

505: the average number of tornados that occur every year. New research indicates that climate change may be making twisters less frequent but more deadly.

896: the highest recorded number of tornadoes in a single season, from 2011.

199: the lowest recorded number of tornadoes in a single season, from 1999.

Twister

9: approximate number of high-tech applications for folded paper that will blow your origami swan comletely out of the water.

"Unfold

Unfold thyself and prosper

These three images show the robot assembling itself, beginning in a flat state.

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