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Nikola Corporation Breaks Ground on Arizona Manufacturing Facility

On July 23, Nikola Corporation, a global transportation company specializing in zero-emission vehicles and infrastructure solutions, broke ground on a 1 million-square-foot manufacturing facility in Coolidge AZ. The future zero-emission facility, sitting on approximately 430 acres, will have the capacity to produce 35,000 Class 8 commercial semi-trucks annually, with the...

Announcing SciFest All Access

Part of the USA Science & Engineering Festival, SciFest All Access will take place online from September 16-23, 2020. Attendees of all ages will be able to engage directly with sponsors and exhibitors to experience 100+ virtual STEM activities. This free virtual event will be a graphical depiction of the...

Seeking the Sounds of Superfluids at Swinburne University

An Australian study headed by Swinburne University and published in late March in Physical Review Letters examines the propagation of energy as sound waves in a quantum gas, revealing for the first time strong variations in the nature of sound waves as a function of temperature. Sound waves reveal the...

The Space Station’s Coolest Experiment Gets Astronaut-Assisted Upgrade

ASA’s Cold Atom Laboratory, a facility for fundamental physics experiments on the International Space Station, underwent a major hardware upgrade with the help of astronauts Christina Koch and Jessica Meir in January. By chilling atom clouds to just above absolute zero—the lowest temperature matter can reach—Cold Atom Lab enables scientists...

CERN Demonstrator Magnet Produces a Record Magnetic Field

In February at CERN, a demonstrator magnet using superconducting niobium-tin, cooled to 1.9 kelvins achieved a peak magnetic field of 16.5 tesla on the conductor, exceeding the previous record of 16.2 tesla from 2015. The demonstrator, known as an enhanced Racetrack Model Coil (eRMC) magnet, consists of two superimposed flat...

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Space Cryogenics

Space cryogenics is, somewhat obviously, the application of cryogenics to space exploration and science. The use of cryogenics in space optimizes the launching of vehicles, provides power and life support to spacecraft and is critical for many scientific observations.Space cryogenics has a number of challenges and has driven both pure...

Exergy

The science of thermodynamics plays a major role in cryogenics. It underlies the various refrigeration cycles, from Carnot to Brayton (Cold Facts Vol. 32 No. 2) and Joule-Thomson, is a fundamental part of the definition of terms such as coefficient of performance (Cold Facts Vol. 31 No. 1) and even...

Cryogenic Treatment

Cryogenic treatment is the process of cooling materials to cryogenic temperatures temporarily to improve their material properties at room temperature. This is distinct from cooling materials down to cryogenic temperatures to take advantage of phenomena such as superconductivity that only occur at cryogenic temperatures. Cryogenic treatment, sometimes also referred to...

Cryogenic Electronics

Randall Kirschman, consulting physicist, Mountain View, California ExtElect@gmail.com Cryogenic electronics—the operation of electronic devices, circuits, and systems at cryogenic temperatures—has been a valuable technology for decades. Cryogenic electronics (also referred to as low-temperature electronics, or cold electronics) can be based on semiconductive devices, on superconductive devices, or on a combination...

Particle Physics: High Energy Physics

Cryogenics and High-Energy Physics 1. From symmetry magazine: http://www.symmetrymagazine.org/cms/?pid=1000627: Cryogenics is the study of how materials behave at temperatures near absolute zero. In high-energy particle accelerators, such frigid temperatures reduce the electrical resistance of wires in superconducting magnets, increasing the magnet strength and allowing faster particle acceleration. The same holds...

HTS Degaussing Systems

From the Spring 2009 issue of Cold Facts (Volume 25, Number 2): Thanks to a joint project by the US Navy and a number of industry partners, high temperature superconducting (HTS) technology is now at the heart of an advanced degaussing system aboard the USS Higgins at the naval station...

Magnetic Resonance Imaging

From http://www.superconductors.org: An area where superconductors can perform a life-saving function is in the field of biomagnetism. Doctors need a non-invasive means of determining what’s going on inside the human body. By impinging a strong superconductor-derived magnetic field into the body, hydrogen atoms that exist in the body’s water and...

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...