When particles move

Landslides are one striking example of erosion. When the bonds that hold particles of dirt and rock together are overwhelmed by a force — often in the form of water — sufficient to pull the rock and soil apart, that same force breaks the bonds with other rock and soil that hold them in place. … Read more

Radioactive Particles in Pacific Sediment Could Mark The Beginning of a New Epoch

The Anthropocene is the name some scientists are giving to the current geological epoch, marked by the point in time when human activity started having a significant impact on the geology and ecosystems of Earth – not least through climate change. Now scientists think they have precisely determined the beginning of the Anthropocene through particular … Read more

Does a “mirror world of particles” explain the crisis in cosmology

Why create one universe when you could create two? Credit: NASA / WMAP Science Team, modified by Brian Koberlein. The idea of ​​a mirror universe is a common trope in science fiction. A world similar to ours where we might find our evil doppelganger or a version of us who actually asked out our high … Read more

New route to build materials out of tiny particles – BIOENGINEER.ORG

Researcher Laura Rossi and her group at TU Delft have found a new way to build synthetic materials out of tiny glass particles – so-called colloids. Together with their colleagues from Queen’s University and the University of Amsterdam, they showed that they can simply use the shape of these colloids to make interesting building blocks … Read more

A New Way To Build Synthetic Materials Out of Tiny Particles

Four cubic colloids made from glass. Credit: TU Delft A new way to build synthetic materials out of tiny glass particles – so-called colloids – has been found by researcher Laura Rossi and her group at TU Delft. Together with their colleagues from Queen’s University and the University of Amsterdam, they showed that they can … Read more

Plants release a variety of biological particles into the air • Earth.com

During their lifespans, plants release through their stems and leaves a wide range of biological particles, including fungal spores, pollen, bacteria, viruses, algae, and cell debris. When reaching the atmosphere, these particles can act as the nuclei for ice crystals or cloud droplets, thus having a significant environmental and climatic impact. Although scientists have long … Read more

Everyday Plastic Products – Such As Coffee Cups – Release Trillions of Microscopic Particles Into Water

NIST researchers analyzed single-use beverage cups, such as coffee cups, which can release trillions of nanoparticles, or tiny plastic particles, from the inner lining of the cup when the water is heated. Credit: N. Hanacek / NIST Plastics are all around us, whether it’s the grocery bags we use at the supermarket or household items … Read more

These Videos From a Space Probe Flying Past The Sun Are Truly Out of This World

A spacecraft looping around the Sun has made its first close approach – and filmed the encounter in glorious detail. The European Space Agency’s (ESA) Solar Orbiter entered the close encounter, known as perihelion, on March 26, coming in at a distance of about 48 million kilometers (30 million miles), inside the orbit of Mercury. … Read more

NASA’s EMIT Mission Will Map Tiny Dust Particles To Study Big Climate Impacts

EMIT is being developed at NASA’s Jet Propulsion Laboratory and is scheduled to launch in 2022. The instrument will observe Earth from outside the International Space Station. Once it begins operation, EMIT data will be delivered to the NASA Land Processes Distributed Active Archive Center (DAAC) for use by other researchers and the public. Credit: … Read more

Alpha particles and alpha radiation explained

Alongside beta particles, gamma rays, and neutrons, alpha particles are a type of radiation, also called alpha radiation. As with most forms of radiation, alpha particles are emitted from radioactive elements. Alpha particles are relatively heavy and slow compared to their companions, so they pose little danger to humans unless ingested. They are, however, frequently … Read more