Ever since we were told about COVID-19, medical experts told us to wash our hands for 20 seconds. We all started to do it, even though we did not know why.
Well, now we know why. Bill Nye: The Science Guy explained it to us and it is really simple. At least to him, it is. To me, it is still confusing. That is why all of my science teachers hated me. Actually, all of my teachers did, but that is for another post. This one is all about Bill Nye: The Cool Guy.