Too bad it’s toxic, otherwise Beryllium bike frames would be amazing. Since it’s number four in the periodic table and therefore very light, it has been used to

Too bad it’s toxic, otherwise Beryllium bike frames would be amazing. Since it’s number four in the periodic table and therefore very light, it has been used to make the James Webb space telescope mirrors [1]. [1] https://www.nasa.gov/topics/technology/features/jwst_mirror.html https://www.nasa.gov/topics/technology/features/jwst_mirror....