News tagged with light waves

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Two or one splashing? It's different

If two children splash in the sea high water waves will emerge due to constructive superposition. Different observations are made for the microscopic world in an experiment at the University of Bonn, where ...

dateJan 15, 2015 in General Physics
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Rocket launches into an aurora to study auroral swirls

If you've ever wondered what makes the aurora take on the amazing forms it does you've got company. Marilia Samara and the crew of aurora researchers at Alaska's Poker Flat Range head up the NASA-funded Ground-to-Rocket Electrodynamics-Electrons Correlative Experiment, ...

dateMar 07, 2014 in Space Exploration
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Laser physics upside down

At the Vienna University of Technology a system of coupled lasers has been created which exhibits truly paradoxical behaviour: An increase in energy supply switches the lasers off, reducing the energy can ...

dateJul 15, 2014 in Optics & Photonics
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Explained: the Doppler effect (w/ Video)

Many students learn about the Doppler effect in physics class, typically as part of a discussion of why the pitch of a siren is higher as an ambulance approaches and then lower as the ambulance passes by. ...

dateAug 03, 2010 in General Physics
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Space image: New supernova remnant lights up

(PhysOrg.com) -- Using the Hubble Space Telescope, astronomers are witnessing the unprecedented transition of a supernova to a supernova remnant, where light from an exploding star in a neighboring galaxy, ...

dateSep 13, 2011 in Astronomy
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