Common glass types
Annealed
This glass undergoes a slow cooling process, which builds its durability. Without using advanced cooling methods,
How Astronauts Train For space
In space, astronauts lose an average of 1.0 to 1.5 per cent of mineral density in weight-bearing bones per month To build up their bodies, cope with confinement and monitor machinery, astronauts must embark on rigorous training programs For many, it’
