Developable Mechanisms can Reside inside the Surface of a Structure

This image shows how developable mechanisms reside in the surface of an object.
Credit: BYU Photo

It took just over 10 years, but real science has finally caught up to the science fiction of Iron Man’s transforming exoskeleton suit. Engineers at Brigham Young University detail new technology that allows them to build complex mechanisms into the exterior of a structure without taking up any actual space below the surface.

This new class of mechanisms, called “developable mechanisms,” get their name from developable surfaces, or materials that can take on 3D shapes from flat conformations without tearing or stretching, like a sheet of paper or metal...

Read More

Tidal Rails: The beginning of the end of an Open Star Cluster

Image of the Hyades, the star cluster closest to the Sun.
Credit: NASA, ESA, and STScI

Researchers verify this phenomenon using Gaia data from the Hyades. In the course of their life, open star clusters continuously lose stars to their surroundings. The resulting swath of tidal tails provides a glimpse into the evolution and dissolution of a star cluster. Thus far only tidal tails of massive globular clusters and dwarf galaxies have been discovered in the Milky Way system. In open clusters, this phenomenon existed only in theory. Researchers at Heidelberg University have now finally verified the existence of such a tidal tail in the star cluster closest to the Sun, the Hyades. An analysis of measurements from the Gaia satellite led to the discovery.

Open star clusters are collections o...

Read More

New Molecules Reverse Memory Loss linked to Depression, Aging

Image result for New molecules reverse memory loss linked to depression, aging

Novel Benzodiazepine-Like Ligands with Various Anxiolytic, Antidepressant, or Pro-Cognitive ProfilesMolecular Neuropsychiatry, 2019; 1 DOI: 10.1159/000496086

New therapeutic molecules developed at Toronto’s Centre for Addiction and Mental Health (CAMH) show promise in reversing the memory loss linked to depression and aging.
These molecules not only rapidly improve symptoms, but remarkably, also appear to renew the underlying brain impairments causing memory loss in preclinical models.

“Currently there are no medications to treat cognitive symptoms such as memory loss that occur in depression, other mental illnesses and aging,” says Dr. Etienne Sibille, Deputy Director of the Campbell Family Mental Health Research Institute at CAMH and lead scientist on the study.

What’s unique and p...

Read More

Ultra-lightweight Ceramic material withstands Extreme Temperatures

The new ceramic aerogel is so lightweight that it can rest on a flower without damaging it.
Credit: Xiangfeng Duan and Xiang Xu/UCLA

Highly durable aerogel could ultimately be an upgrade for insulation on spacecraft. UCLA researchers and collaborators at eight other research institutions have created an extremely light, very durable ceramic aerogel. The material could be used for applications like insulating spacecraft because it can withstand the intense heat and severe temperature changes that space missions endure.

Ceramic aerogels have been used to insulate industrial equipment since the 1990s, and they have been used to insulate scientific equipment on NASA’s Mars rover missions...

Read More