Physics
Why is the sun so good at evaporating water?
Why is the sun so good at evaporating water? A new study has found that the oscillating electric field inherent to sunlight is the key factor behind its exceptional ability to evaporate water. The researchers used computational simulations to explore how different parameters associated with sunlight influence evaporation, and found that removing the oscillating electric […]
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How do atoms form? A physicist explains where the atoms that make up everything around come from
How do atoms form? A physicist explains where the atoms that make up everything around come from Atoms are the building blocks of everything around us, and they’re made up of protons, neutrons, and electrons. The number of protons in an atom determines its chemical properties. The universe’s hydrogen and helium atoms formed about 400,000 […]
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Where is the center of the universe?
Where is the center of the universe? The concept of the center of the universe is challenging to understand due to its dynamic and expanding nature. The universe’s expansion means that everything, including galaxies, is moving away from each other, not just galaxies moving away from us. The space between galaxies, rather than the galaxies […]
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Do photons wear out? An astrophysicist explains light’s ability to travel vast cosmic distances without losing energy
Do photons wear out? An astrophysicist explains light’s ability to travel vast cosmic distances without losing energy Light travels at an incredible speed of 186,000 miles per second, making it the fastest thing in the universe. Despite its immense speed, light does not wear out or lose energy over vast cosmic distances because space is […]
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Granular systems, such as sandpiles or rockslides, are all around you − new research will help scientists describe how they work
Granular systems, such as sandpiles or rockslides, are all around you − new research will help scientists describe how they work Scientists have long struggled to understand how granular systems, such as sandpiles or rockslides, behave when individual grains interact with each other. A new research approach uses photoelasticity, a property that makes transparent materials […]
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2 solar probes are helping researchers understand what phenomenon powers the solar wind
2 solar probes are helping researchers understand what phenomenon powers the solar wind This artist's rendition shows NASA's Parker Solar Probe approaching the Sun. Steve Gribben/Johns Hopkins APL/NASA via AP Our Sun drives a constant outward flow of plasma, or ionized gas, called the solar wind, which envelops our solar system. Outside of Earth’s protective […]
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