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Woman Gives Birth from Ovary Frozen in Childhood

The first woman to have an ovary frozen before the onset of puberty has given birth to a baby boy. As a nine-year-old child, Moaza Al Matrooshi, now 24, suffered from a severe blood disorder, beta-thalassemia, and needed chemotherapy in preparation for a bone marrow transplant to treat the condition....

New Method Increases Precision of Atom Interferometry

In a paper published in Physical Review Letters, a research team from the MIT-Harvard Center for Ultracold Atoms presents a method to increase the precision of atom interferometry with Bose-Einstein condensates, a result, the group says, that eliminates a source of error endemic to earlier designs. Interferometers using the new...

Air Liquide Commissions Cavernous Hydrogen Storage Facility

Air Liquide has commissioned a new hydrogen storage facility housed some 1,500 meters deep in a Texas cavern. The 70-meters in diameter installation is capable of holding enough hydrogen to back up a large-scale steam methane reformer unit for 30 days, according to the company, and will offer hydrogen supply...

NASA to Resume Webb Telescope Vibration Tests

During routine testing of NASA's James Webb Space Telescope in December, an unexpected response occurred from several of the more than 100 devices designed to detect small changes in the motion of the structure, prompting engineers at Goddard Space Flight Center to put the vibration tests on hold to determine...

JILA Atomic Clock Mimics Long-Sought Synthetic Magnetic State

Using an advanced atomic clock to mimic other desirable quantum systems, JILA physicists have caused atoms in a gas to behave as if they possess unusual magnetic properties long sought in harder-to-study solid materials. Representing a novel "off-label" use for atomic clocks, the research could lead to the creation of...

German Universities Reject Elsevier Offer

In a stand for open access, a consortium of more than 60 major German research institutions has rejected an offer from Elsevier for a nationwide license to access scientific publications. As a consequence, the Alliance of Science Organizations in Germany anticipates that current access to Elsevier journals will end on...

Latest in Defining Cryogenics

Dilution Refrigerators

Dilution refrigerators are a common technique for reaching temperatures below 1K, particularly where continuous cooling at these temperatures is required. Helium exists in two stable isotopes: 4He and 3He. Naturally occurring 3He is extremely rare, constituting less than 1 part per million of helium gas. However, 3He can be manufactured,...

Oxygen Deficiency Hazards

Oxygen Deficiency Hazards (ODH) are a significant safety issue in cryogenic facilities. ODH occurs when inert gases such as nitrogen, helium or argon displace room air and thus lower the percentage of oxygen in the space below that required for human life. OSHA defines an area as oxygen deficient if...

Kelvin Temperature Scale

The Kelvin temperature scale is the principal temperature scale used in cryogenics and science. The kelvin is also one of the seven base units in the Système International d’Unités (SI) and is the unit of thermodynamic temperature. Thermodynamic temperature is a fundamental physical quantity (like mass, length or electrical current)...

Latest in Cryo Central

Air Separation and Liquefaction

by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...

Bose-Einstein Condensate

A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...

Cold Technology for Pest Control

While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...

Cryogenic Finishing

The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...

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