72 million pounds of pressure per square inch. that is greater pressure than the pressure at the center of the earth. in that tiny li"> 72 million pounds of pressure per square inch. that is greater pressure than the pressure at the center of the earth. in that tiny li" property="og:description"> 72 million pounds of pressure per square inch. that is greater pressure than the pressure at the center of the earth. in that tiny li">
72 million pounds of pressure per square inch. that is greater pressure than the pressure at the center of the earth. in that tiny little device. and by inventing a way to squeeze stuff that hard, they say, these researchers from this lab at harvard, they say they have created a whole new thing on earth. the first element in the periodic table is hydrogen. in normal circumstances, hydrogen is a gas. if you cool it to low temperatures hydrogen becomes a liquid. if you cool it down more than that it can become a solid. but if you take that solid and put it into professor silvera's magic squeezing device you, according to what they say, according to what they think they have just done, they think they have figured out a way to compress hydrogen so much with more pressure than we can exert at the center of the earth, you can compress it so much that hydrogen turns into a metal. and at harvard, professor silvera and his post-doctoral