Cold Facts Digital – Page 63 – The go-to place for Cryogenics and Superconductivity

Study: Online comments hurt science understanding

Researchers at the University of Wisconsin-Madison have found that Americans may be as much influenced by reader comments at the end of science news articles as by the articles themselves, as reported by the Milwaukee Journal Sentinel.

Time magazine honors Fabiola Gianotti and the Higgs-like boson

The European Organization for Nuclear Research (CERN) is celebrating Time magazine’s naming of its ATLAS spokesperson Fabiola Gianotti as runner-up for 2012 Person of the Year (an honor bestowed on US President Barack Obama) for her leading role in the endeavor to discover the Higgs-like boson. Shown is a mock...

A temperature below absolute zero

Physicists at the Ludwig-Maximilians University Munich and the Max Planck Institute of Quantum Optics in Garching report that they have created an atomic gas in the laboratory that has negative Kelvin values.

Superconductors for efficient wind power plants

An efficient, robust, and compact wind power plant with a 10 MW superconducting generator is being developed by partners from industry and science within the recently established EU project SUPRAPOWER (SUPerconducting, Reliable, lightweight, And more POWERful offshore wind turbine).

A eulogy to Herschel

In January's Physics World, Steve Eales, a University of Cardiff astronomer who leads one of the telescope's largest surveys, explains how this space facility has advanced our understanding of star and galaxy formation.

Heat flows ‘backwards’ across Josephson junction

Tim Wogan in physicsworld.com reports that the thermal Josephson effect, which occurs when heat is transported across a gap between two superconductors, has been measured in the lab for the first time.

Latest in Defining Cryogenics

Transfer Lines

Transfer lines may in some real sense be thought of as the cryogenic fluid analogy of current leads. While current leads carry electrical power to where it’s required in a cryogenic system, transfer lines do the same with cryogenic fluids. Transfer lines range in complexity from very simple U-tubes containing...

Zero Boiloff

Zero Boil Off cryostats are those that contain liquid cryogens but are designed to eliminate or vastly reduce the boil off of the liquid. These cryostats combine some of the advantages of Cryogen-Free systems (e.g. ease of use and long operational lifetime) with the advantages associated with a reservoir of liquid...

Cryomodule

Cryomodule is a term that is most commonly used to refer to cryostats that contain superconducting radio frequency (SRF) cavities. Such cavities are used to accelerate charged particle beams and are a major component of modern particle accelerators. Using the term cryomodule to refer to cryostats containing SRF cavities appears...

Latest in Cryo Central

Food Processing

Cryogenics and Food The industrial gas industry provides a host of products and services related to food. The various gases have useful and sometimes fascinating applications in food industry. “The food industry is not a homogenous industry. The needs of customers processing hamburger vs. poultry vs. strawberries vs. seafood, for...

Primary Standards

Elie K. Track Hypres, Inc. elie@hypres.com http://www.hypres.com/ Primary standards involve the exact definition and realization of units of measurement for various quantities, time, length, mass, voltage, resistance, current, etc. International agreements based on the latest scientific knowledge define those units, and their realizations vary depending on the unit itself. For...

Shrink Fitting

Robin A. Rhodes Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Shrink fitting, (or “compression fitting” as it is sometimes called), is a method used to insert a pin or bushing into a housing or other assembly requiring an extremely tight tolerance fit. It can be used as an alternative to...

Telecommunications

From the Winter 2004 issue of Cold Facts magazine The recent M-Calc IV — 4th Industry Assessment workshop discussing military and commercial applications for low-cost cryocoolers, held in November in San Diego, highlighted progress being made in cryogenics as applied in telecommunications. The reliability and long lifetime of projects now...

Latest in Ask the Experts

An Issue of Pressure and Flow Rate in a Supply Tank

Please help solve this problem: A supply tank requires a vaporizer to generate sufficient pressure to pump stored fluid up into a vehicle or tank. The available head is limited as the tank level falls and it is important to minimize the system pressure drop to maintain the desired flow...

Using MLI on VJ Line Joints or Cryo Storage Tanks

When installing Multi Layer Insulation (MLI) blankets on VJ line joints or cryo storage tanks should they be wrapped and tied down tight or loose? These are usually pre-cut to size. Also should they have an access hole at the point of where the molecular sieve is installed to help...

Separated layers of ice over a pipe

I want to know that why there are different layers of ice over a pipe carrying a cryogenic fluid, each layer separated with clear marks / lines? What do these layers signify?

Using nitrogen as a cryogen

Is it possible to achieve -200˚C using nitrogen as a cryogen?

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