Motion and Stability: Forces and Interactions
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PhysicsForests could help detect ‘ghost particles’ from space
If trees could act as natural antennas, one physicist proposes that they just might pick up signals of hard-to-spot ultra-high energy neutrinos.
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PhysicsPhysics explains what happens when a lawn sprinkler sucks in water
Experiments with a floating sprinkler revealed the surprisingly complex physics behind a simple question.
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PhysicsHow much fruit can you pull from a display before it topples?
About 10 percent of the fruit in a tilted market display can be removed before it will crash down, computer models show.
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Materials ScienceLet’s learn about graphene
Scientists have been trying to understand and harness this material’s superpowers since its discovery in 2004.
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TechSynthetic biology aims to tackle disease and give cells superpowers
DNA machines and protein-mimicking nanotech could replace broken machinery in cells or even lead to made-from-scratch synthetic life.
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TechBalsa wood transistors could usher in ‘greener’ electronics
Researchers in Sweden coaxed wood to conduct electricity, then used it to make a climate-friendlier building block of electronics.
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TechOffshore wind farms could do far more than just make clean power
Offshore wind farms cost more than onshore ones. But their ability to make ‘green’ hydrogen and capture carbon dioxide could help this wind power pay off.
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EnvironmentNew ultrathin materials can pull climate-warming CO2 from the air
To slow global warming, we’ll need help from CO2-trapping materials. Enter MXenes. They’re strong and reactive — and they love to eat up CO2.
By Shi En Kim -
TechParticles from tree waste could prevent fogged lenses, windshields
A new coating made from a renewable resource — water-loving nanoparticles made from wood — could keep glass surfaces fog-free.
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TechBits of trees can make and store energy for us to use
This cellulose and lignin, two major building blocks of trees, could lead to greener electronics.
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Materials ScienceA new hydrogel could help pull drinking water from the air
The salty gel absorbs more water from the air than similar gels, even in desert climates. This could provide clean water for drinking or farming.
By Laura Allen -
TechNew tech 3-D prints ouchless COVID-19 vaccine patches
A new compact 3-D printer can produce COVID-19 vaccine patches. These are less painful than the jab and can be stored more easily than liquid vaccines.