Liquid helium of liquid water. Helium was first liquefied on July 10, 1908, by the Dutch physicist Heike Kamerlingh Onnes at the University of Leiden in the Netherlands. At that time, helium-3 was unknown because the mass spectrometer had not yet been invented. In more recent decades, liquid helium has been used as a cryogenic refrigerant, and liquid helium is produced commercially for use in superconducting magnets such as those used in magnetic resonance imaging (MRI), nuclear magnetic resonance (NMR), Magnetoencephalography (MEG), and experiments in physics, such as low temperature Mössbauer spectroscopy. The temperature required to produce liquid helium is low because
Heike Langguth Heike Langguth Heike Langguth (born October 22, 1979) is a German two times vice-champion in Muay Thai. Heike Langguth began her athletic career as a boxer and trained a little later in Weimar kickboxing. In 2004, she started at the 1 SSV Hall Field 92 eV with Muay Thai. That same year she became German Vice-champion and could repeat their success 2005th In 2006, she founded the association 'Bareknuckle eV', which operates a training center for Muay Thai, Kickboxing and traditional Boxing Eckartsberga malls village. Langguth works as a trainer and is effective for the training center Bareknuckle Gym Germany;