Helium

Nasa Sounding Rocket Finds Helium Structures In Sun's Atmosphere

Helium is the second most abundant element in the universe after hydrogen. But scientists aren't sure just how much there actually is in the Sun's atmosphere, where it is hard to measure. Knowing the amount of helium in the solar atmosphere is...
Related topics: NASA, Space, Sun, Hydrogen

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Could Mini-neptunes Be Irradiated Ocean Planets?

Many exoplanets known today are 'super-Earths,' with a radius 1.3 times that of Earth, and 'mini-Neptunes,' with 2.4 Earth radii. Mini-Neptunes, which are less dense, were long thought to be gas planets, made up of hydrogen and helium. Now,...
Related topics: Space, Exoplanets, Hydrogen

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Stars Like Our Sun Become Lithium Factories As They Die

In the beginning, the big bang created three elements: hydrogen, helium, and lithium. But it only produced a trace of lithium. For every lithium atom created, the big bang produced about 10 billion hydrogen atoms, and 3 billion helium atoms. The...
Related topics: Sun, Lithium, Big Bang, Hydrogen

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Light Nucleus Predicted To Be Stable Despite Having Two Strange Quarks

Adding an exotic particle known as a Xi hyperon to a helium nucleus with three nucleons could produce a nucleus that is temporarily stable, calculations by RIKEN nuclear physicists have predicted. This result will help experimentalists search for...
Related topics: Physics

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Research Reveals How Material Defects Influence Melting Process

In 1972, physicists J. Michael Kosterlitz and David Thouless published a groundbreaking theory of how phase changes could occur in two-dimensional materials. Experiments soon showed that the theory correctly captured the process of a helium film...
Related topics: Physics

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Physicists Study Mirror Nuclei For Precision Theory Test

A precision measurement of helium and hydrogen mirror isotopes reveals new questions in understanding of nuclear structure.
Related topics: Physics, Hydrogen

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Long-lived Pionic Helium: Exotic Matter Experimentally Verified For The First Time

Exotic atoms in which electrons are replaced by other subatomic particles of the same charge allow deep insights into the quantum world. After eight years of ongoing research, a group led by Masaki Hori, senior physicist at the Max Planck Institute...
Related topics: Electrons, Quantum, Physics

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New 'brick' For Nanotechnology: Graphene Nanomesh

Researchers at Japan Advanced Institute of Science and Technology (JAIST) have successfully fabricated suspended graphene nanomesh in a large area by helium ion beam microscopy. Six nm diameter nanopores were uniformly patterned on the 1.2 um long...
Related topics: Graphene

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What Do Soap Bubbles And Butterflies Have In Common?

A unique butterfly breeding experiment gave researchers an opportunity to study the physical and genetic changes underlying the evolution of structural color, responsible for butterflies' iridescent purples, blues and greens. Using helium ion...
Related topics: Genetics

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Frozen-planet States In Exotic Helium Atoms

Exotic subatomic particles that are like 'normal' particles apart from one, opposite, property—such as the positron, which is like an electron but positively rather than negatively charged—are collectively known as antimatter. Direct studies of...
Related topics: Space, Positrons, Electrons, Antimatter

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Liquid Helium-free Srf Cavities Could Make Industrial Applications Practical

The building blocks of superconducting accelerators are superconducting radiofrequency (SRF) cavities made primarily from niobium that are combined in a vessel and bathed in liquid helium to reach superconducting temperatures. While a large liquid...
Related topics: Superconductors

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Solar Wind Samples Suggest New Physics Of Massive Solar Ejections

A new study led by the University of Hawai'i (UH) at Mānoa has helped refine understanding of the amount of hydrogen, helium and other elements present in violent outbursts from the Sun, and other types of solar "wind," a stream of ionized atoms...
Related topics: Sun, Physics, Hydrogen

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Gamma-ray Laser Moves A Step Closer To Reality

A physicist has performed calculations showing hollow spherical bubbles filled with a gas of positronium atoms are stable in liquid helium. The calculations take scientists a step closer to realizing a gamma-ray laser.
Related topics: Laser, Physics

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Gas Giant Composition Not Determined By Host Star

A surprising analysis of the composition of gas giant exoplanets and their host stars shows that there isn't a strong correlation between their compositions when it comes to elements heavier than hydrogen and helium, according to new work led by...
Related topics: Exoplanets, Hydrogen

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Thanksgiving Day Parade Balloons Might Be Grounded This Year - Find Out Why!

Every year, it’s an annual tradition to see various floats and balloons glide through New York City during the Macy’s Thanksgiving Day Parade. However, this year, all 16 helium filled balloons may be grounded due to excessive sustained...
Related topics: Thanksgiving

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The Avc Helium Hotspot Discount Code

Last Thursday I wrote about the Helium launch in NYC and suggested that readers might want to purchase a Helium hotspot. Well, I have good news. AVC readers can buy a Helium hotspot with a discount. Here is how you do it. 1/ Go to the...

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Alpha Magnetic Spectrometer Measurements Unveil Properties Of Cosmic Helium

The Alpha Magnetic Spectrometer (AMS) collaboration, a large group of researchers from CERN and other institutes worldwide, has recently presented a series of precision measurements of the properties of cosmic Helium isotopes 3He and 4He. These...
Related topics: CERN

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This Startup Wants To Pay You—in Cryptocurrency—to Help Build Its Network

Helium’s peer-to-peer LongFi is optimized for internet-of-things devices that need just a little bandwidth. An internet-of-things connectivity startup called Helium has both buzzwords and boldface names going for it. But the business model...
Related topics: Startup

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Are Solar-powered Airships The Future Of Cargo Delivery?

A solar-powered airship built by a U.K.-based company could be a groundbreaking way to freight cargo internationally with lower emissions, and a big step towards a 100 percent renewable world.Varialift's airship will use helium gas to lift off,...

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Lunar Elevator Could Trigger Moon Mining Race

Lunar Elevator Could Trigger Moon Mining Race Authored by Irina Slav via SafeHaven.com, Rare earth elements and helium are just some of the resources scientists believe are abundant on the Moon. The problem is how to get them here....
Related topics: Moon, Space

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