ScienceDaily: Top Technology News |
- Paddle vs. propeller: Which competitive swimming stroke is superior?
- Most quasars live on snacks, not large meals
- Mars weather report: Size of particles in Martian clouds of carbon dioxide snow calculated
- Compact blue dwarf can’t hide from Hubble
- From pomegranate peel to nanoparticles
- On the origin of music by means of natural selection
| Paddle vs. propeller: Which competitive swimming stroke is superior? Posted: 19 Jun 2012 08:02 PM PDT In time for the US Olympic Trials, engineers settle the argument over which swim stroke technique -- deep catch or sculling -- is faster.  |
| Most quasars live on snacks, not large meals Posted: 19 Jun 2012 07:56 PM PDT A census of 30 quasar host galaxies, conducted with the Hubble Space Telescope and Spitzer Space Telescope, has found that black holes in the early universe may have only needed a few snacks, such as a batch of gas or the occasional small satellite galaxy, rather than one giant meal to fuel their quasars and help them grow.  |
| Mars weather report: Size of particles in Martian clouds of carbon dioxide snow calculated Posted: 19 Jun 2012 09:01 AM PDT New research shows that, much like Earth, the polar caps of Mars change with the seasons. In the dead of a Martian winter, clouds of snow blanket the Red Planet's poles -- but unlike our water-based snow, the particles on Mars are frozen crystals of carbon dioxide. Most of the Martian atmosphere is composed of carbon dioxide, and in the winter, the poles get so cold -- cold enough to freeze alcohol -- that the gas condenses, forming tiny particles of snow.  |
| Compact blue dwarf can’t hide from Hubble Posted: 19 Jun 2012 07:51 AM PDT The NASA/ESA Hubble Space Telescope has captured a new view of the dwarf galaxy UGC 5497, which looks a bit like salt sprinkled on black velvet in the image.  |
| From pomegranate peel to nanoparticles Posted: 19 Jun 2012 07:39 AM PDT Food waste is a growing problem in many parts of the world, but discarded fruit peel, in the case of pomegranates, could be put to good use in the burgeoning field of nanotechnology according to new research.  |
| On the origin of music by means of natural selection Posted: 18 Jun 2012 12:37 PM PDT Do away with the DJ and scrap the composer. A computer program powered by Darwinian natural selection and the musical tastes of 7,000 website users may be on the way to creating a perfect pop tune, according to new research.  |
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