Liquid helium physicist Richard Feynman. Liquid helium At standard pressure, the chemical element helium exists in a liquid form only at the extremely low temperature of −270 °C (about 4 K or −452.2 °F). Its boiling point and critical point depend on which isotope of helium is present: the common isotope helium-4 or the rare isotope helium-3. These are the only two stable isotopes of helium. See the table below for the values of these physical quantities. The density of liquid helium-4 at its boiling point and a pressure of one atmosphere (101.3 kilopascals) is about 0.125 grams per cm, or about
Boiling Point (1990 film) Boiling Point (1990 film) Boiling Point, known in Japan as , is a 1990 Japanese film written by, directed by, and co-starring Takeshi Kitano. It was his second film as director and first film as a screenwriter. "Boiling Point" is seen as an important first step in his development as an editor and as a director. Ono Masahiko stars as a shiftless, inattentive young man, a member of a losing local baseball team, whose coach is threatened and attacked by a local yakuza. He teams up with a friend to go to Okinawa to purchase guns so they can get