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The way we define kilograms, meters and seconds changes today

We measure stuff all the time—how long, how heavy, how hot, and so on—because we need to for things such as trade, health and knowledge. But making sure our measurements compare apples with apples has been a challenge: ...

Manipulating atoms one at a time with an electron beam

The ultimate degree of control for engineering would be the ability to create and manipulate materials at the most basic level, fabricating devices atom by atom with precise control.

Record-shattering underwater sound

A team of researchers has produced a record-shattering underwater sound with an intensity that eclipses that of a rocket launch. The intensity was equivalent to directing the electrical power of an entire city onto a single ...

Restaurant acoustics that schmeckt

Acoustics consultant Klaus Genuit says that new International Standards Organization guidelines for defining, measuring and evaluating soundscapes are a big step forward in guiding the creation of audibly fine restaurants.

TSU physicists are investigating the effects of radiation on DNA

Scientists from TSU's Laboratory of Experimental High Energy Physics and their colleagues from the University of Bordeaux are studying new ways of modeling the effects of low doses of radiation at the cellular level. For ...

How loud is too loud when it comes to sports whistles?

How loud is too loud when it comes to whistle tweets? Referees and others using whistles on the job need a simple way to determine whether it's harmful to their hearing, so a group of researchers set out to put it to the ...

How Nigerian music can help you choose a ripe watermelon

The quickest way to decide if a watermelon is ripe or not is by tapping on it. And if you're having trouble detecting the subtleties of the sound, listen to some Nigerian traditional music to get your ears attuned, says an ...

Physicists discover new type of spin waves

Current technologies for information transfer and processing are challenged by fundamental physical limits. The more powerful they become, the more energy they need, and the more heat is released to the environment. Also, ...

Locating a shooter from the first shot via cellphone

In the past several decades, militaries have worked hard to develop technologies that simultaneously protect infantry soldiers' hearing and aid in battlefield communication. However, these advanced Tactical Communication ...

How acoustics detected artillery in WWI

During World War I, William Lawrence Bragg led a team of engineers in the development of an acoustic method to locate enemy artillery, work that was so successful that it was soon used widely throughout the British army.

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A mathematical method for calculating black-hole properties from gravitational-wave data
General Physics
What happens when a raindrop hits a puddle?
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'Fire streaks' ever more real in the collisions of atomic nuclei and protons
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A new filter to better map the dark universe
General Physics
Move over, silicon switches: There's a new way to compute
General Physics
Mystery of texture of Guinness beer: Inclination angle of a pint glass is key to solution
General Physics
New material also reveals new quasiparticles
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Researchers discover a trigger for directed cell motion
General Physics
Physicists propose perfect material for lasers
General Physics
ATLAS Experiment adds more pieces to the Higgs boson puzzle
General Physics
Twisting whirlpools of electrons
General Physics
Academics show how to create a spotlight of sound with LEGO-like bricks
General Physics
Neutrons investigate tomatoes for insights into interplant chatter
General Physics
Experimental device generates electricity from the coldness of the universe
General Physics
First demonstration of antimatter wave interferometry
General Physics
The evolution of skyrmions in Ir/Fe/Co/Pt multilayers and their topological Hall signature
General Physics
Reconstructing the acoustics of Notre Dame
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Laser-driven spin dynamics in ferrimagnets: How does the angular momentum flow?
General Physics
Promising material could lead to faster, cheaper computer memory
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New material to pave the way for more efficient electronic devices

Other news

Materials Science
Scientists use molecular tethers and chemical 'light sabers' to construct platforms for tissue engineering
Molecular & Computational Biology
A 'biomultimeter' to measure RNA and protein production in real-time
Cell & Microbiology
Staying in shape: MBL microscopy helps reveal how bacteria grow long, not wide
Plants & Animals
Plant discovery opens frontiers
Archaeology & Fossils
In a first, researchers identify reddish coloring in an ancient fossil
Nanophysics
Water nanodroplets zip across graphene faster than a cheetah
Condensed Matter
Iron selenide revealed as 'garden-variety iron-based superconductor'
Environment
Researchers outline vision for profitable climate change solution
Earth Sciences
Resilience of Yellowstone's forests tested by unprecedented fire
Social Sciences
Farmers have less leisure time than hunter-gatherers, study suggests
Astronomy
Is dark matter made of axions? Black holes may reveal the answer
Ecology
Reverse-engineered computer model provides new insights into larval behavior
Cell & Microbiology
Bacteria change behavior to tackle tiny obstacle course
Astronomy
Juno finds changes in Jupiter's magnetic field
Biochemistry
Synthetic biologists hack bacterial sensors
Astronomy
Astronomers investigate peculiar outburst activity of AG Draconis
Biotechnology
SABER tech gives DNA and RNA visualization a boost
Environment
Giving rural Indians what they want increases demand for cookstoves
Earth Sciences
How Earth's mantle is like a Jackson Pollock painting
Condensed Matter
Researchers develop new lens manufacturing technique