Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Decades-old Scientific Paper May Hold Clues To Dark Matter

Slashdot - Fri, 24/10/2014 - 4:23pm
sciencehabit writes: Here's one reason libraries hang on to old science journals: A paper from an experiment conducted 32 years ago may shed light on the nature of dark matter, the mysterious stuff whose gravity appears to keep the galaxies from flying apart. The old data put a crimp in the newfangled concept of a 'dark photon' and suggest that a simple bargain-basement experiment could put the idea to the test. The data come from E137, a "beam dump" experiment that ran from 1980 to 1982 at SLAC National Accelerator Laboratory in Menlo Park, California. In the experiment, physicists slammed a beam of high-energy electrons, left over from other experiments, into an aluminum target to see what would come out. Researchers placed a detector 383 meters behind the target, on the other side of a sandstone hill 179 meters thick that blocked any ordinary particles.

Read more of this story at Slashdot.








Categories: Science

Hands-On: OBERWERK MARINER 8x40 Binoculars for Sky-Watching

Space.com - Fri, 24/10/2014 - 4:01pm
Massing 37oz, with a wide 8.4° field of view and 5mm of exit pupil, these are excellent ‘grab and go’ binoculars for anything outdoors. Space.com’s @DavidSkyBrody shows you the good and not-so-good features.
Categories: Science

Hands-On: CELESTRON COMETRON 7x50 Binoculars for Sky-Watching

Space.com - Fri, 24/10/2014 - 3:59pm
Massing 27oz, with a 6.8° field of view and 7.1mm of exit pupil, these binoculars are great for young astronomers. Space.com’s @DavidSkyBrody shows you the good and not-so-good features.
Categories: Science

Hands-On: CELESTRON SKYMASTER 8x56 Binoculars for Sky-Watching

Space.com - Fri, 24/10/2014 - 3:57pm
Massing 35oz, with a 5.8° field of view and 7mm of exit pupil, these binoculars are fine for astronomy but can be used in daytime for other hobbies and sports. Space.com’s @DavidSkyBrody shows you the good and not-so-good features.
Categories: Science

How to Choose Binoculars for Astronomy and Skywatching

Space.com - Fri, 24/10/2014 - 3:56pm
A good pair of binoculars can help stargazers get the most out of the night sky. Find out which type of binoculars you need in our Buyer's Guide.
Categories: Science

Oberwerk Mariner 8x40 Binoculars Review: 2014 Edition

Space.com - Fri, 24/10/2014 - 3:56pm
The Oberwerk Mariner 8x40 is our Editors' Choice for best small binoculars for astronomy. Read our full review and find more top picks here.
Categories: Science

Celestron SkyMaster 25x100 Binoculars Review: 2014 Edition

Space.com - Fri, 24/10/2014 - 3:55pm
Celestron's Skymaster 25x100 is our Editors' Choice for best large astronomy binoculars. These binoculars are an immersive space-time machine. But large binoculars must be mounted on a tripod, or the view will be very shaky and your arms very quickly exha
Categories: Science

Celestron SkyMaster 8x56 Binoculars Review: 2014 Edition

Space.com - Fri, 24/10/2014 - 3:55pm
Celestron’s Skymaster 8x56 is our Editors’ Choice for best medium-sized binoculars for astronomy. Read our full review and find more top picks here.
Categories: Science

Hands-On: OBERWERK ULTRA 15x70 Binoculars for Sky-Watching

Space.com - Fri, 24/10/2014 - 3:55pm
Massing 88oz, with a 4.4° field of view and 4.6mm of exit pupil, these optically wonderful binoculars deliver the universe at night and the sunlit world in daylight. Space.com’s @DavidSkyBrody shows you the good and not-so-good features.
Categories: Science

Hands-On: CELESTRON SKYMASTER 25x100 Binoculars for Sky-Watching

Space.com - Fri, 24/10/2014 - 3:51pm
Massing 156oz, with a 3° field of view and 4mm of exit pupil, these optically sweet monsters belong on a tripod. They are actually 2 side-by-side refractor telescopes. Space.com’s @DavidSkyBrody shows you the good and not-so-good features.
Categories: Science

Hands-On: ORION ASTRONOMY 20x80 Binoculars for Sky-Watching

Space.com - Fri, 24/10/2014 - 3:48pm
Massing 76oz, with a 3.2° field of view and 4mm of exit pupil, these rubber-coated binoculars, plus a sturdy tripod, will bring you close to the night sky, plus animals and sports in daylight. Space.com’s @DavidSkyBrody shows you around.
Categories: Science