Category Physics

This image shows electron density in a molecule. Credit: Moscow Institute of Physics and Technology

This will make it possible to directly control chemical reactions and biological processes and obtain a desired result literally at the touch of a button. Using “attophysics”- the study of events with attosecond time resolution (10^-18 of a second), the researchers are trying to track the ultrafast movement of electrons in molecules, or more precisely the restructuring of their electron shells. These processes are the key to understanding chemical and biochemical reactions, as it is the “redistribution” of electrons that is involved in the formation of new chemical bonds...

Researchers explained that this air cooling system based on clean energy that is supplied with water and has photovoltaic modules that can operate for 12 continuous hours. Credit: Image courtesy of Investigación y Desarrollo

GeckoLogic firm developed an evaporative cooler that has an integrated photovoltaic system isolated from the electrical network, which enables to refresh an area of ​​~200 sq meters. The advantage of this product is that it works exclusively with sunlight and water, which makes it self-sustaining. It also entails the advantage of eliminating the need to connect it to a conventional power source. In addition to only using clean energy it reduces the environmental impact caused by the emission of greenhouse gases that traditional systems cause.

This air cooling syst...

This is a coronary artery structure being 3-D bioprinted. Credit: Carnegie Mellon University College of Engineering

This month >4,000 Americans are on waiting list to receive a heart transplant. Researchers have used a new 3D bioprinting method to bioprint models of hearts, arteries, bones and brains out of biological materials. The work could one day lead to a world in which transplants are no longer necessary to repair damaged organs.

“We’ve been able to take MRI images of coronary arteries and 3D images of embryonic hearts and 3D bioprint them with unprecedented resolution and quality out of very soft materials like collagens, alginates and fibrins,” said Assoc Prof Adam Feinberg

“3-D printing of various materials has been a common trend in tissue engineering in the last decade, but unt...

This is a diagram of the dielectric capacitor research developed by a University of Delaware-led research team. Credit: Kathy F. Atkinson/University of Delaware

Nanotechnology offers new approach to increasing storage ability of dielectric capacitors. In the movie ‘Back to the Future,’ Doc Brown and Marty McFly landed in the future in their DeLorean, with time travel made possible by a ‘flux capacitor.’ Today, capacitors are key components of portable electronics to electric cars, providing fast delivery of energy but poor storage capacity. Researchers now report a new approach to increasing storage ability.

In contrast to batteries, which offer high storage capacity but slow delivery of energy, capacitors provide fast delivery but poor storage capacity...