Physics

Honoring a Teacher: Christa McAuliffe’s Lost Lessons

At some point in life, everyone has had a teacher. Teachers are a special group of individuals who nurture minds and ensure that we are equipped to be successful in our personal and professional lives.

Scientists design new MRI coil for preclinical studies

Researchers from ITMO University developed and tested an MRI coil providing high-resolution imaging of the whole body of a mouse. Such coils are used in preclinical testing, as well as in imaging of various body systems. The new coil produces images with three times higher resolution than standard commercial volume MRI coils. Scientists used inexpensive materials and manufacturing technology that may be adjusted for various research projects. The research was published in NMR in Biomedicine as the cover story.

NASA Celebrates 60th Anniversary at Chicago Air and Water Show

Join NASA at the 2018 Chicago Air and Water Show and help celebrate the agency’s 60th Anniversary. A “NASA Village” full of exhibits will be open during the free airshow Aug. 17 – 19 from 10 a.m. to 3 p.m. on the North Avenue Beach.

NASA to Host Briefings, Events for Aug. 11 Launch to Touch Sun

As NASA nears the launch of its Parker Solar Probe, the agency will host a series of media briefings beginning Wednesday, Aug. 8. These briefings, as well as special programs, the launch on Saturday, Aug. 11, and a postlaunch news conference all will air on NASA Television and the agency’s website.

NASA Holds Media Teleconference on New Public-Private Space Tech Partnerships

NASA will host a media teleconference at 3 p.m. EDT Wednesday, Aug. 8, to announce new public-private partnerships that will develop commercial space capabilities and benefit future NASA exploration missions.

NASA Awards Base Operations, Spaceport Services Contract at Kennedy Space Center

NASA has selected PAE-SGT Partners LLC (PSP) of Arlington, Virginia, to provide institutional support services at the agency’s Kennedy Space Center in Florida and NASA facilities at its neighboring Cape Canaveral Air Force Station.

Ricocheting radio waves monitor the tiniest movements in a room

Relief may be on the horizon for anyone who has ever jumped around a room like a jack-in-the-box to get motion-sensing lights to turn back on, thanks to a new motion sensor based on metamaterials that is sensitive enough to monitor a person's breathing.

New approach yields high-purity radium for medical applications

Producing radium isotopes to treat cancer could get easier. Researchers developed a method to recover medical radium isotopes. The process begins with the dissolved proton-irradiated thorium target solution. The process then takes the solution through a series of columns. In each column, different isotopes bind to the different substrates the column contains. With the anticipated scale-up to large thorium targets, dozens of patient treatment doses would be available for recovery from a single production process.

The marriage of topology and magnetism in a Weyl system

Topology is a global aspect of materials, leading to fundamental new properties for compounds with large relativistic effects. The incorporation of heavy elements gives rise to non-trivial topological phases of matter, such as topological insulators, Dirac and Weyl semimetals. The semimetals are characterized by band-touching points with linear dispersion, similar to massless relativistic particles in high energy physics.

The marriage of topology and magnetism in a Weyl system

Topology is a global aspect of materials, leading to fundamental new properties for compounds with large relativistic effects. The incorporation of heavy elements give rise to non-trivial topological phases of matter, such as topological insulators, Dirac and Weyl semimetals. The semimetals are characterized by band-touching points with linear dispersion, similar to massless relativistic particles in high energy physics.

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