Spacecraft entering the atmospheres of other planets have achieved even faster speeds. The Galileo probe entered Jupiter's atmosphere on Sept. 21, 2003, at 134,200 mph (216,000 kph) at an altitude of 620 miles (1,000 kilometers). Although Galileo's entry speed far outstripped Apollo's,...
There’s another rating to consider for devices, especially for smartwatches; the ATM (Atmospheres) rating system indicates how much static atmospheric pressure a device can deal with while in water. It’s actually an older rating system than the IP certification. A rating of 1 ATM means that...
These types of machines can be bought for around $50, and there's even one that is made especially to take on a camping trip. They all work on the same principle, so we'll take a look at one of the camping-style machines. In this type of machine, the coffee is packed into a fu...
“Hydrothermal vents are scattered all over the ocean floor,” Ardyna said. Knowing about the pathways that bring their nutrients up to surface waters will help researchers make more accurate calculations about the flow of carbon in the world’s oceans. “Much remains to be done to reveal othe...
“Low levels (below 10 mW/cm2) of NIR (non-ionizing radiation) have been found to produce many adverse health effects in animals including temporary sterility, genetic changes, and changes in the transmission of nerve impulses,”explains the Foundation for Advancement in Cancer Therapy (FACT). ...
However, the natural gas must be compressed to 200-220 atmospheres - call it 210. As with the air car, this takes energy. The energy E required to compress air at 25C is, E = 110,000 x ln (P1/P2) /m3/mol There are 44.74 moles of methane in 1m3 of natural gas - natural gas...