The Physics of Faraday Cages
This also works the other way: Incoming electromagnetic waves will get canceled by the moving charges in the Faraday cage. Your phone won’t know that it’s getting a text message …
physics
Magnetic Minerals May Have Given Life Its Molecular Asymmetry
Naaman and his team discovered that chiral molecules filter electrons based on the direction of their spin. Electrons with one spin orientation will move more efficiently across a chiral molecule …
How These Nobel-Winning Physicists Explored Tiny Glimpses of Time
The original version of this story appeared in Quanta Magazine. To catch a glimpse of the subatomic world’s unimaginably fleet-footed particles, you need to produce unimaginably brief flashes of light. …
Nobel Prize in physics goes to trio for opening door to ‘world of electrons’ – National
Scientists Pierre Agostini, Ferenc Krausz and Anne L’Huillier won the 2023 Nobel Prize in Physics for creating incredibly short pulses of light that can capture processes inside atoms and molecules, …
Which Spider-Man Is Stronger: Tobey Maguire or Tom Holland?
Next, I need the mass. Each car has an empty mass of 26,000 kilograms and a capacity of 34 seats, or 123 total passengers. From the clip, the train looks …
A New Proof Moves the Needle on a Sticky Geometry Problem
The original version of this story appeared in Quanta Magazine. In 1917, the Japanese mathematician Sōichi Kakeya posed what at first seemed like nothing more than a fun exercise in …
Radiation Is Everywhere. But It’s Not All Bad
For many of the sources you encounter in everyday life, the amount of radiation is so low that you don’t need to worry about it. But ionizing radiation can also …
A New Map of the Universe, Painted With Cosmic Neutrinos
-copy.jpg "A New Map of the Universe, Painted With Cosmic Neutrinos")
The original version of this story appeared in Quanta Magazine. Of the 100 trillion neutrinos that pass through you every second, most come from the sun or Earth’s atmosphere. But …
How to Cool an Object Without Using Any Energy
There are three ways that objects can have a thermal interaction with other objects. The most common method is through heat conduction. This happens when two objects of different temperatures …
A New Idea for How to Assemble Life
According to assembly theory, before Darwinian evolution can proceed, something has to select for multiple copies of high-AI objects from the Assembly Possible. Chemistry alone, Cronin said, might be capable …