Waves and Their Applications in Technologies for Information Transfer
- Planets
Signs of a hidden Planet Nine in our solar system may be an illusion
Hints of the remote planet, also called Planet X, relied on clumped up orbits of bodies beyond Neptune. A new study suggests that clumping doesn’t exist.
- Physics
Scientists Say: Radiation
Radiation is the motion of energy through space as waves or particles.
- Computing
5G promises new energy savings for digital tech
A new way to transmit wireless communications promises time and energy savings by using networks of smaller cells.
- Computing
Greening your digital life
The less electricity you use while playing video games or using your devices, the less impact you’ll have on climate change.
- Climate
COVID-19 cut pollution in 2020, warming the atmosphere
Pandemic-related lockdowns briefly warmed the planet. The reason: The cleaner air carried fewer planet-cooling aerosols.
- Physics
Let’s learn about light
Light is a form of energy that moves in waves. Some light comes in waves we can see. Other waves are invisible to us — but still affect our world.
- Science & Society
Machine learning includes deep learning and neural nets
By combining patterns found in mountains of data with information gleaned from mistakes, these computer programs expand their artificial intelligence.
- Animals
Fin whales could help scientists map what lies below the seafloor
Fin-whale calls are loud enough to penetrate into Earth’s crust, offering scientists a new way to study the properties of the ocean floor.
- Archaeology
Unusual mud shell covers an Egyptian mummy
In ancient Egypt, commoners may have been mummified and then encased in mud to repair damage to the body or to imitate royal techniques used with royals.
- Brain
New technology can get inside your head. Are you ready?
New technologies aim to listen to — and maybe even change — your brain activity. But just because scientists can do this, should they?
- Earth
Space station sensors saw how weird ‘blue jet’ lightning forms
A mysterious type of lightning in the upper atmosphere has been traced to a brief, bright flash of light at the top of a storm cloud.
- Physics
Scientists Say: Piezoelectric
Piezoelectric materials produce an electric voltage when they are bent or squished. This can let us harvest electricity from movement.
