Energy & Green Tech
In a world where rising temperatures increase the demand for cooling, traditional air conditioning (AC) systems contribute significantly to global energy consumption. They also heat Earth overall: to cool down a certain volume ...
Apr 10, 2024
0
1
Engineering
In the 80 years since the shocking collapse of the Tacoma Narrows Bridge in Washington, engineers have designed suspended structures to minimize their universal weakness: resonance. If not designed to deal with oscillations ...
Mar 13, 2024
1
3
Computer Sciences
A London court on Friday ruled that a British tabloid newspaper hacked Prince Harry's phone while reporting on the royal family.
Dec 18, 2023
0
13
Robotics
Imagine grasping a heavy object, like a pipe wrench, with one hand. You would likely grab the wrench using your entire fingers, not just your fingertips. Sensory receptors in your skin, which run along the entire length of ...
Oct 4, 2023
0
75
Engineering
Material used in organic solar cells can also be used as light sensors in electronics. This has been shown by researchers at Linköping University, Sweden, who have developed a type of sensor able to detect circularly polarized ...
Sep 28, 2023
0
15
Machine learning & AI
Genes make up only a small fraction of the human genome. Between them are wide sequences of DNA that direct cells when, where, and how much each gene should be used. These biological instruction manuals are known as regulatory ...
May 4, 2023
0
90
Engineering
Whether in photosynthesis or in a photovoltaic system: If you want to use light efficiently, you have to absorb it as completely as possible. However, this is difficult if the absorption is to take place in a thin layer of ...
Aug 29, 2022
0
12
Engineering
Joel Berkson, a third-year doctoral student in the University of Arizona James C. Wyant College of Optical Sciences and Steward Observatory, has developed a new way for precisely measuring the surfaces of radio antenna, which ...
Apr 21, 2022
0
80
Business
Last year, companies around the U.S. scrambled to figure out how to shut down their offices and set up their employees for remote work as the COVID-19 virus suddenly bore down on the world.
Jul 7, 2021
0
8
Robotics
New York police will stop using a robotic dog similar to ones that inspired an episode of dystopian Netflix series "Black Mirror" after a backlash over its deployment, the force said Thursday.
Apr 29, 2021
0
18
A mirror is an object that reflects light or sound in a way that preserves much of its original quality prior to its contact with the mirror. Some mirrors also filter out some wavelengths, while preserving other wavelengths in the reflection. This is different from other light-reflecting objects that do not preserve much of the original wave signal other than color and diffuse reflected light. The most familiar type of mirror is the plane mirror, which has a flat surface. Curved mirrors are also used, to produce magnified or diminished images or focus light or simply distort the reflected image.
Mirrors are commonly used for personal grooming or admiring oneself (in which case the archaic term looking-glass is sometimes still used), decoration, and architecture. Mirrors are also used in scientific apparatus such as telescopes and lasers, cameras, and industrial machinery. Most mirrors are designed for visible light; however, mirrors designed for other types of waves or other wavelengths of electromagnetic radiation are also used, especially in non-optical instruments.
This text uses material from Wikipedia, licensed under CC BY-SA
