In 1960, famed theoretical physicist Freeman Dyson made a radical proposal. In a paper titled "Search for Artificial Stellar Sources of Infrared Radiation," he suggested that advanced extra-terrestrial intelligences (ETIs) ...
Astronomy
May 20, 2019
1
444
A microscope used by Antoni van Leeuwenhoek to conduct pioneering research contains a surprisingly ordinary lens, as new research by Rijksmuseum Boerhaave Leiden and TU Delft shows. It is a remarkable finding, because Van ...
Cell & Microbiology
May 14, 2021
2
1002
Holograms are three-dimensional (3D) images produced by interfering beams of light that reflect physical objects or photographs. In recent years, they were introduced in a variety of settings, for instance to enhance employee ...
(PhysOrg.com) -- By taking advantage of the unique optical properties of nanoscale materials, researchers have designed a lens made of nanowires that can reconfigure its imaging properties without any electronic or mechanical ...
Transparent biosensors embedded into contact lenses could soon allow doctors and patients to monitor blood glucose levels and a host of other telltale signs of disease without invasive tests. Scientists say the bio-sensing ...
Analytical Chemistry
Apr 4, 2017
0
706
NASA's Mars rover Curiosity acquired this image using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover's robotic arm, on November 3, 2020, Sol 2931 of the Mars Science Laboratory Mission, at ...
Space Exploration
Nov 6, 2020
1
179
According to the Vision Council of America, roughly 75% of adults in the United States require some form of vision correction. Yet only 10% of Americans wear contact lenses. Studies estimate that one in four initial contact-users ...
Mathematics
May 4, 2016
0
36
Researchers have designed an optical lens with the highest free-space numerical aperture to date, achieving a value of just under 1. As the numerical aperture indicates the highest possible resolution that a lens can attain, ...
(Phys.org)—An iPhone 5 with a layer of man-made sapphire covering its Gorilla Glass 2 screen has been demoed at the Mobile World Congress 2013 in Barcelona. The purpose was to demonstrate how much more scratch resistant ...
The joint development team of Professor Shibata (the University of Tokyo), JEOL Ltd. and Monash University succeeded in directly observing an atomic magnetic field, the origin of magnets (magnetic force), for the first time ...
Condensed Matter
Feb 24, 2022
1
1326
