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.
Here are a few key safety tips gleaned from the pages linked above: 1  The only safe way to look directly at the uneclipsed or partially eclipsed Sun is through special-purpose solar filters (eclipse glasses or handheld viewers) that meet the ISO 12312-2 international standard for such products.