A reusable hot pack made of a supersaturated sodium acetate solution that crystallizes spontaneously once triggered by a metal piece releases heat. A balloon filled with hydrogen gas also releases ...

The following conclusions from some experiments of Heir Magnus, of Berlin, strengthen the opinion that hydrogen is a metal. His apparatus consists of a glass tube within which a thermometer is ...

In the years since then, balloon flight technology has evolved from cloth balloons and open baskets to polyethylene balloons and metal pressurized ... cubic feet of hydrogen, an extremely ...

A research team led by Dr. Seung Ju Han at the Korea Research Institute of Chemical Technology (KRICT) has introduced selenium-doped molten metal catalysts (NiBi, CuBi) to significantly enhance ...

A reusable hot pack made of a supersaturated sodium acetate solution that crystallizes spontaneously once triggered by a metal piece releases heat. A balloon filled with hydrogen gas also releases ...