Mercury-Filled Balloon Popped For Science

Mercury is a curious element. Its most well-known feature is that it is a liquid at room temperature. This is surprising since our instincts tell us that metals are solid. Mercury is also an extremely dangerous element. Being exposed to even a small amount of it can cause visual impairment, a 'pins…
by José Lourenço via Facebook at May 13, 2015 at 08:02AM
http://ift.tt/1e01SUL