light

A night full of stars. Illustration: depositphotos.com

Twinkle little star

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What are stars? Why do they twinkle? And how can we identify the planets closest to us in the starry sky?
Einstein's equation (E = mc^2) describes the relationship between mass and energy. Illustration: depositphotos.com

In honor of Albert Einstein's birthday: Light – waves or particles?

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From the chapter "The Year of Wonders" from Prof. Hanoch Gutfreund's book: Albert Einstein Creates a World Picture
The galaxy cluster PLCK G165.7+67.0 and SN H0pe as imaged by the NIRCam instrument on the Webb Space Telescope. Credit: NASA, ESA, CSA, STScI, Brenda Frey (University of Arizona), Roger Windhorst (ASU), S. Cohen (ASU), Jordan CJ D'Silva (UWA), Anton M. Cuckmore (STScI), Jake Summers (ASU)

The Webb Space Telescope discovered a supernova that updates the Hubble constant - the expansion rate of the universe

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The discovery of SN H0pe, a distant supernova that was observed in three replicates using gravitational insolation, allowed researchers to accurately measure the Hubble constant at different times, revealing insights into the expansion rate of the universe

Light alone cannot create a black hole

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Researchers from Canada and Spain have demonstrated for the first time that black holes cannot be formed from the compression of electromagnetic radiation alone. The reason for this lies in a quantum effect that converts energy into particles that scatter from the compressed area and prevent the light from collapsing
The Science Garden at the Davidson Institute for Science Education. Photo by Ido Kagan

The science garden at the Weizmann/Davidson Institute was inaugurated

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The Klor Science Garden of the Davidson Institute for Science Education - the educational arm of the Weizmann Institute of Science, has undergone an upgrade in recent years so that it also reflects fields of knowledge that did not exist 25 years ago
Nanotechnology to improve solar panels. Illustration: depositphotos.com

Catch the sun in its rays

Researchers have created a metallic sponge that increases light energy and can adsorb substances to it
The experimental system, which includes a tiny metal antenna (the two greenish "triangles") and light-emitting particles scattered around it. Photographed with an electron microscope

What are the interactions between light and material in a nanometer antenna aimed at receiving visible light?

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Star Trek on Single Atoms

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Source: pixabay.

See the night in a new light

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The left diagram represents electromagnetic activity with light at the lowest level possible according to the laws of classical physics. On the right, part of the electromagnetic field has been reduced even further. The price is the inability to measure the beam of light. This effect is called "squeezing" (like squeezing juice from an orange) due to the elliptical shape it creates. Illustration: Mete Atature, University of Cambridge.

Scientists "squeezed" a beam of light - photon after photon

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Professor Lior Gepstein. Photo: Technion spokespeople

The illuminated heart - researchers have demonstrated the possibility of timing and resynchronizing the disrupted heart rhythm using a beam of light as a replacement for an electric pacemaker

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Soldiers from the US Navy's Sea Lion unit use night vision equipment. The image looks green. Photo: from Wikipedia

Green light - what is the connection between the green images that soldiers see at night and the light of the stars?

Germanium laser. Photo: MIT

Scientists managed to "freeze" light rays for a whole minute

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Landmarks in the expansion of the universe. From Wikipedia

Scientists: The speed of light is not constant. Vacuum particles cause fluctuations in the speed of light

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Screenshot from a TED talk by Ed Boyden, one of the developers of the method for healing the nervous system using light

Light up/wake up the brain - control of animal behavior through optogenetics

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Dr. Kobi Shuyer. Photo: Tel Aviv University

Dear light

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Heinrich Rudolf Hertz. From Wikipedia

Heinrich Hertz - the man who proved that electricity can be turned into electromagnetic waves and led to the development of the telegraph and the radio

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Nano Funnel. Illustration Christian Hackenberger, Max Planck Institute

New light at the end of the tunnel

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The children are actually excited. Professor Michal Lipson. Photo: Jason Kosky, Cornell University

The "Genius Award" was awarded to Prof. Michal Lipson of Cornell, co-inventor of the invisibility cloak

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Bending of light rays: Illustration: Tel Aviv University

Scientists at Tel Aviv University have found a new method for bending light rays

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"By binding the 'combat head' molecule to the peptoid, we have shown that we can increase the protein's killing potential a thousandfold without requiring an expensive and lengthy optimization process," says Prof. Tom Kodadec

New substances to unload proteins

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The light bypasses a three-dimensional sphere and makes it invisible. Image: Duke University

Progress towards a cloak that makes the wearer invisible - XNUMXD

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Researchers from the Technion and "Imperial College" in London have designed a "photon cannon" that shoots bundles of entangled photons

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Artificial lighting increases the incidence of prostate cancer

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Researchers have discovered a new state of electrons that behave like light

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The blackest material in the world

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Looking in vain for a dark area

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