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Simulations Reveal An Unusual Death For Ancient Stars

Simulations Reveal An Unusual Death For Ancient Stars

Linda Vu, Berkeley Lab Computing Sciences Findings made possible with NERSC resources and Berkeley Lab Code Certain primordial stars—those between 55,000 and 56,000 times the mass of our Sun, or solar masses—may have died unusually. In...

Latest Physics Stories

2014-09-30 12:30:35

WASHINGTON, Sept. 30, 2014 /PRNewswire-USNewswire/ -- Leaders of the National Photonics Initiative (NPI), an alliance of top scientific societies uniting industry and academia to raise awareness of photonics, launched its Photonics Industry Neuroscience Group alongside officials from the White House Office of Science and Technology (OSTP) in conjunction with today's White House BRAIN Initiative conference. Members of the NPI industry group are committing to invest upwards of $30 million in...

2014-09-30 08:35:44

WALTHAM, Mass., Sept. 30, 2014 /PRNewswire/ -- Tecogen Inc. (NASDAQ: TGEN) today announced it signed a contract with a prominent hotel chain to provide a tri-generation energy system for a 400 room hotel complex in Jersey City, New Jersey. Tecogen will install the system, comprised of a group of Tecogen InVerde 100 kW cogeneration modules, including absorption chillers, to provide electricity as well as hot water for heating and chilled water for cooling (tri-generation). The...

2014-09-30 08:20:53

Engineering simulation helps engines burn hotter without damaging components PITTSBURGH, Sept. 30, 2014 /PRNewswire/ -- Engineers from Stanford University, Honeywell International and ANSYS (NASDAQ: ANSS) are working together with simulation software to create more energy-efficient aircraft engines at lower costs. As demand grows for increased gas turbine efficiency, engine manufacturers are challenged with creating designs that operate at higher temperatures. But that becomes a...

2014-09-29 23:02:53

Superior Electrostatic Discharge Protection with Ultra-low Capacitance in Miniature Semiconductor Package now Available Santa Clara, CA (PRWEB) September 29, 2014 OnChip Devices, Inc. today announced an ultra-low capacitance ESD (Electrostatic Discharge) protection chip to support high-speed data port applications. Available immediately, OnChip's highly integrated ESD0504P solution provides a high-level of ESD protection for interfaces such as USB 3.0, Gbit Ethernet, Firewire, and...

2014-09-29 20:24:29

ESPOO, Finland, September 30, 2014 /PRNewswire/ -- Picosun Oy, the leading manufacturer of high quality Atomic Layer Deposition (ALD) equipment for global industries, reports the successful low temperature deposition of graphene, enabled by its PICOPLASMA(TM) remote plasma source system. Only 400 oC deposition temperature, now demonstrated by an elite research group led by Prof. Wei Ren and Prof. Zuo-Guang Ye at Xi'an Jiaotong University, China, does not only widen the...

fea-cloaking
2014-09-28 08:17:30

Chuck Bednar for redOrbit.com – Your Universe Online Researchers from the University of Rochester in New York have developed an inexpensive new way to create a Harry Potter-esque invisibility cloak using ordinary lenses to obscure objects from sight at a variety of angles. According to Carrie Putnam of Reuters, the device known as the Rochester Cloak is not actually a cloak at all, but a device that resembles the equipment typically used by an eye doctor. When an item is placed behind...

Live Long And Phosphor: Blue LED Breakthrough For Efficient Electronics
2014-09-27 08:59:56

University of Michigan In a step that could lead to longer battery life in smartphones and lower power consumption for large-screen televisions, researchers at the University of Michigan have extended the lifetime of blue organic light emitting diodes by a factor of 10. Blue OLEDs are one of a trio of colors used in OLED displays such as smartphone screens and high-end TVs. The improvement means that the efficiencies of blue OLEDs in these devices could jump from about five percent to...

Stephen Hawking Says 'There Is No God,' Confirms He's An Atheist
2014-09-27 08:00:21

April Flowers for redOrbit.com – Your Universe Online The debate between science and religion has been raging nearly as long as there has been science or religion. From Galileo Galilei’s house arrest in the 1600s to the Scopes Trial in 1925 and all the way to the present, science and religion have been at odds. In the latest salvo from science, prominent astrophysicist Stephen Hawking has announced that he is an atheist, claiming that science’s explanation of the origins of the...

2014-09-26 23:00:45

Geometrics Inc. announces the G-857 Proton Magnetometer, the lowest priced professional magnetometer system available. San Jose, CA (PRWEB) September 26, 2014 Geometrics, world-leader in manufacture of geophysical instruments, recently retired the G-856AX Proton Magnetometer after 32 years in production. Geometrics completely re-engineered the instrument into the G-857 offering many new capabilities while maintaining its low price. G-857 features include larger memory, fast data...

2014-09-25 20:22:36

BALTIMORE, Sept. 25, 2014 /PRNewswire/ -- Clear Guide Medical announced that its first clinical product, the CLEAR GUIDE ONE, was cleared by the United States' Food and Drug Administration on September 19, 2014. This opens the door to marketing and sale of the device in the United States. In addition, following a recent assessment of its quality management system by the British Standards Institute (bsi.), Clear Guide Medical has been recommended for certification to ISO...


Latest Physics Reference Libraries

Nuclear Fallout
2013-04-01 10:26:30

Nuclear fallout, or just simply fallout, known also as Black Rain, is the residual radioactive material that is propelled into the upper atmosphere after a nuclear black or a nuclear reaction that is conducted in an unshielded facility. It is so called because it "fall out" of the sky after the explosion and the shock wave have passed. It most commonly refers to the radioactive dust and ash that is created when a nuclear weapon explodes, but such dust can also come from a damaged nuclear...

Cosmology
2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

Astrophysics
2014-01-12 00:00:00

Image Caption: NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 56,000 light-years in diameter and approximately 60 million light-years distant. Credit: NASA/ESA/Wikipedia What is Astrophysics? For much of the modern age the term Astrophysics has been used synonymously with Astronomy. This interchange is so common that many textbooks even offer the two as having the same meaning. However, from a strictly historical perspective there are differences...

Basic Ocean Terms
2013-02-05 12:52:11

Image Credit: Meteorologist Joshua Kelly When meteorologists are forecasting for ocean-going vessels, there are a few terms that we need to understand. The first term is wavelength. Wavelength is defined as the distance between two crests or between two troughs as seen in the image above. The example above highlights the crest to crest concept of wavelength. The next term that we use is wave height, and to determine this, we first must look at the wave when it passes our station. When...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

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Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'