But it wasn't until the 17th century that attempts were made to harness the power exhibited by Heron's aeolipile for practical purposes. In the first century A.D., Hero of Alexandria invented the aeolipile, or primitive steam turbine. Credit: Public domain.
Borax is a good natural choice for cleaning mold. It is toxic if you swallow it, but otherwise, it does not emit dangerous fumes or chemicals when you use it. What makes it great to use on mold is that it disinfects the surfaces it cleans. You mix borax with water in a one cup to one gallon ratio.
1 Mix 1 cup of borax with 1 gallon (3.8 L) of water. 2  Dip a scrub brush in the solution and use it to scrub away the black mold. 3  Wipe the area clean of mold. 4  Don't rinse the area, since the borax will prevent the spores from growing again. Mix 1 cup of bleach and 1 gallon (3.8 L) of water. 2  Use a spray bottle or a bucket and sponge to apply the bleach mixture to the area with black mold. 3  Let the bleach sit on the mold for an hour.