Despite criticism and early technical failures, the taming of liquid hydrogen proved to be one of NASA's most significant technical accomplishments. . . . Hydrogen -- a light and extremely powerful rocket propellant -- has the lowest molecular weight of any known substance and burns with extreme intensity (5,500Â°F).
The Solar Eclipse/Welding Glasses offered at myeyewear2go are ideally suited to any task or situation that involves eye-damaging light, including welding, solar eclipse viewing, and the viewing of direct sunlight. The green athermal shade 14 glass lenses utilized in these frames block over 99% of UV light and 97% of Infrared Radiation.
Viewing a Solar Eclipse. 1  1. Read about a solar eclipse. 2  2. Be aware of the methods that shouldn't be used for viewing a solar eclipse. 3  3. Make an eclipse viewer or a pinhole projector.  4. Use a solar filter on your viewing 1  equipment. 5. View an eclipse indirectly by making a projection.  6. Use welder's 1  glass. 7. Use mounted filters.