The jellyfish-like light show in the animations above shows the life and death of a flame in microgravity. The work is part of the Flame Extinguishment Experiment 2 (FLEX-2) currently flying aboard the International Space Station. When ignited, the fuel droplet creates a blue spherical shell of flame about 15 mm in diameter. The spherical shape is typical of flames in microgravity; on Earth, flames are shaped like teardrops due to the effects of buoyancy, which exists only in a gravitational field. The bright yellow spots and streaks that appear after ignition are soot, which consists mainly of hot-burning carbon. The uneven distribution of soot is what causes the pulsating bursts seen in the middle animation. When soot products drift back onto the fuel droplet, it causes uneven burning and flame pulses. The final burst of flame in the last animation is the soot igniting and extinguishing the flame. Fires are a major hazard in microgravity, where oxygen supplies are limited and evacuating is not always an option. Scientists hope that experiments like FLEX-2 will shed light on how fires spread and can be fought aboard spacecraft. For more, check out NASA’s ScienceCast on microgravity flames. (Image credits: NASA, source video; submitted by jshoer)
Ozzy yelling at the ocean for flooding his campfire.
Ozzy is a national treasure
LOL I saw him give this presentation. Love this guy.
Hydrogen energy levels with fine structure (electron spin and relativity) corrections.
Porco Rosso | 1992 : The scene where Porco Rosso is telling the story of how he turned into a Pig was inspired by Roald Dahl's "They Shall Not Grow Old" in "Over to You: Ten Stories of Flyers and Flying", 1946 A story of pilots and air crew Who now, in their own aircraft Take their last journey.
these were the last rockets america made that could reach the moon and the last were destroyed several years ago
coincidentally, they also threw out the schematics to build them, so if we ever wanted to go the moon again, we would have to start on new rockets entirely from scratch
1.a) there are three existing Saturn Vs on display at Johnson Space Center, Kennedy Space Center, and at the United States Space and Rocket Center.(source) None of them are flight ready by any means, but there ought to be enough of them left to reverse engineer.
2) SpaceX’s Falcon Heavy, set to launch in 2015, produces more thrust than the Saturn V did.
(Also why would we want to use late 60s rocket technology??)