OCR Text |
Show THE COLDEST LIQUID KNOWN. Scientists Asserts Nothing Can Equal Liquid Hydrogen. Liquid hydroccn is by far the coldest cold-est liquid known at the present time. At ordinary atmospheric pressure) It bolls at 4!2 dcsrecB K., and reduction reduc-tion of the pressure by an air pump brlntrs tho tomperature down to i'J2 degrees, at which the liquid becomes a solid, resembling frozen foam. According to Prof. Hewar, to whom the credit Is due of bavin llquclled hydrogen In 18J8. tho liquid is a color-loss, color-loss, transparent body, and la tho IlKhtest liquid known to oxlst, Its density being only l-nth that of water! tho IlKhtest liquid previously known was liquid marsh c, which 1b six times heavier. Tho only solid which has ao small density aa to Moat upon Its aurface Is a piece of pith wood. Casslor'i alaga-tlua. |