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| Food fight or exercise attack? Posted: 29 Nov 2013 07:16 AM PST Experts offer two ways to battle the holiday bulge. |
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| Do black holes come in size medium? Posted: 29 Nov 2013 06:11 PM PST Black holes can be petite, with masses only about 10 times that of our sun -- or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is busy scrutinizing a class of black holes that may fall into the proposed medium-sized category. |
| Controversy over use of Roman ingots to investigate dark matter, neutrinos Posted: 29 Nov 2013 07:19 AM PST The properties of lead bricks recovered from ancient shipwrecks are ideal for experiments in particle physics. Scientists have begun to use them, but archaeologists have raised alarm about the destruction and trading of cultural heritage that lies behind this. |
| The more the better: Polyandry in salamanders Posted: 29 Nov 2013 07:18 AM PST New research shows the impact of polyandry on reproductive success in fire salamanders. |
| Mitochondria separate their waste Posted: 29 Nov 2013 07:18 AM PST Cellular power plants collect and break down damaged molecules in order to protect themselves from harmful substances, research shows. Up to now, it was unclear whether this housekeeping work involves sorting out defective proteins when they digest mitochondria. Researchers have now discovered that the proteins are sorted out during the constant fusion and fission of mitochondria. |
| Telescope to track space junk using youth radio station Posted: 29 Nov 2013 07:18 AM PST A combination of pop songs, talkback radio and cutting-edge science has enabled Australian astronomers to identify a way to prevent catastrophic, multi-billion dollar space junk collisions, a new study has revealed. |
| Electricity generated from weight of traffic and pedestrians Posted: 29 Nov 2013 07:17 AM PST New technology integrates a ramp-step (elaborated with polymeric material similar to the ones used in the manufacture of tires) that elevates to five centimeters above the level of the street. When receiving the impact of a vehicle, this ramp exerts pressure on a set of bellows below. The bellows contain air that is expelled at a certain pressure through a hose; later, this element travels to a tank where it is compressed and relaunched to an electricity generating turbine. |
| Food fight or exercise attack? Posted: 29 Nov 2013 07:16 AM PST Experts offer two ways to battle the holiday bulge. |
| Bone grafting improvements with help of sea coral Posted: 28 Nov 2013 09:59 PM PST Sea coral could soon be used more extensively in bone grafting procedures thanks to new research that has refined the material's properties and made it more compatible with natural bone. |
| Snapshots differentiate molecules from their mirror image Posted: 28 Nov 2013 11:13 AM PST Researchers are able to reveal the spatial structure of chiral molecules from work done to develop a method that takes a snapshot of chiral molecules, revealing their spatial atomic structure. The molecule's handedness, or chirality, can be directly derived from this information. |
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ScienceDaily: Top Environment News |
| The more the better: Polyandry in salamanders Posted: 29 Nov 2013 07:18 AM PST New research shows the impact of polyandry on reproductive success in fire salamanders. |
| Mitochondria separate their waste Posted: 29 Nov 2013 07:18 AM PST Cellular power plants collect and break down damaged molecules in order to protect themselves from harmful substances, research shows. Up to now, it was unclear whether this housekeeping work involves sorting out defective proteins when they digest mitochondria. Researchers have now discovered that the proteins are sorted out during the constant fusion and fission of mitochondria. |
| You are subscribed to email updates from ScienceDaily: Top Environment News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 20 West Kinzie, Chicago IL USA 60610 | |
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| Do black holes come in size medium? Posted: 29 Nov 2013 06:11 PM PST Black holes can be petite, with masses only about 10 times that of our sun -- or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is busy scrutinizing a class of black holes that may fall into the proposed medium-sized category. |
| Programe for parents of preschoolers getting results Posted: 29 Nov 2013 07:23 AM PST The results indicated that completion of the HOPE-20 program generated significant improvement in children's mastery of preschool concepts and language skills, reduced the children's behavior problems, lowered the stress of their parents, and fostered the parents' sense of competence. |
| Protien Cyclin D1 governs microRNA processing in breast cancer Posted: 29 Nov 2013 07:19 AM PST A protein that helps push a replicating cell through the cell cycle also mediates the processing and generation of mature microRNA, according to new research. |
| Controversy over use of Roman ingots to investigate dark matter, neutrinos Posted: 29 Nov 2013 07:19 AM PST The properties of lead bricks recovered from ancient shipwrecks are ideal for experiments in particle physics. Scientists have begun to use them, but archaeologists have raised alarm about the destruction and trading of cultural heritage that lies behind this. |
| Elucidating heavy precipitation events Posted: 29 Nov 2013 07:19 AM PST It is difficult to forecast heavy precipitation events accurately and reliably. The quality of these forecasts is affected by two processes whose relative importance has now been quantified. The French researchers have shown that these processes should be taken into account in low wind speed events. Their findings should help forecast these events, which repeatedly cause significant damage. |
| Mother-to-child HIV transmission in Gipuzkoa reduced significantly over last 25 years Posted: 29 Nov 2013 07:19 AM PST The evolution that took place between 1984 and 2011 in paediatric HIV infection in Gipuzkoa has been studied. The development of methods to diagnose the disease coupled with increasingly more effective treatments have made it possible to reduce mother-to-child transmission (vertical transmission) from 23.9% to 2.4%, thus virtually eradicating infection in children. |
| The more the better: Polyandry in salamanders Posted: 29 Nov 2013 07:18 AM PST New research shows the impact of polyandry on reproductive success in fire salamanders. |
| Enhancing efficiency of complex computations Posted: 29 Nov 2013 07:18 AM PST Planning a trip from Berlin to Hamburg, simulating air flows around a new passenger airplane, or friendships on Facebook – many computer applications model relationships between objects by graphs (networks) in the sense of discrete mathematics. An important method to manage complex computations on steadily growing networks is graph partitioning. Computer scientists have now released the Karlsruhe High Quality Partitioner (KaHIP). The solutions produced by this tool presently are the best worldwide. |
| Mitochondria separate their waste Posted: 29 Nov 2013 07:18 AM PST Cellular power plants collect and break down damaged molecules in order to protect themselves from harmful substances, research shows. Up to now, it was unclear whether this housekeeping work involves sorting out defective proteins when they digest mitochondria. Researchers have now discovered that the proteins are sorted out during the constant fusion and fission of mitochondria. |
| Telescope to track space junk using youth radio station Posted: 29 Nov 2013 07:18 AM PST A combination of pop songs, talkback radio and cutting-edge science has enabled Australian astronomers to identify a way to prevent catastrophic, multi-billion dollar space junk collisions, a new study has revealed. |
| Electricity generated from weight of traffic and pedestrians Posted: 29 Nov 2013 07:17 AM PST New technology integrates a ramp-step (elaborated with polymeric material similar to the ones used in the manufacture of tires) that elevates to five centimeters above the level of the street. When receiving the impact of a vehicle, this ramp exerts pressure on a set of bellows below. The bellows contain air that is expelled at a certain pressure through a hose; later, this element travels to a tank where it is compressed and relaunched to an electricity generating turbine. |
| Architects of nanoworld behind the screens Posted: 29 Nov 2013 07:17 AM PST New types of building blocks for electronics will be the future, that is clear. Molecules can already be given the functionality of a transistor. But compared to the huge complexity of current chips, with eight or nine 'highways' above each other, connecting all elements is still impossible. Silicon research and industry has shown an immense effort, and progress is being made. |
| Food fight or exercise attack? Posted: 29 Nov 2013 07:16 AM PST Experts offer two ways to battle the holiday bulge. |
| Bone grafting improvements with help of sea coral Posted: 28 Nov 2013 09:59 PM PST Sea coral could soon be used more extensively in bone grafting procedures thanks to new research that has refined the material's properties and made it more compatible with natural bone. |
| Snapshots differentiate molecules from their mirror image Posted: 28 Nov 2013 11:13 AM PST Researchers are able to reveal the spatial structure of chiral molecules from work done to develop a method that takes a snapshot of chiral molecules, revealing their spatial atomic structure. The molecule's handedness, or chirality, can be directly derived from this information. |
| You are subscribed to email updates from ScienceDaily: Latest Science News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 20 West Kinzie, Chicago IL USA 60610 | |
ScienceDaily: Top Science News |
| Do black holes come in size medium? Posted: 29 Nov 2013 06:11 PM PST Black holes can be petite, with masses only about 10 times that of our sun -- or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is busy scrutinizing a class of black holes that may fall into the proposed medium-sized category. |
| You are subscribed to email updates from ScienceDaily: Top Science News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 20 West Kinzie, Chicago IL USA 60610 | |
ScienceDaily: Top News |
| Do black holes come in size medium? Posted: 29 Nov 2013 06:11 PM PST Black holes can be petite, with masses only about 10 times that of our sun -- or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is busy scrutinizing a class of black holes that may fall into the proposed medium-sized category. |
| The more the better: Polyandry in salamanders Posted: 29 Nov 2013 07:18 AM PST New research shows the impact of polyandry on reproductive success in fire salamanders. |
| Mitochondria separate their waste Posted: 29 Nov 2013 07:18 AM PST Cellular power plants collect and break down damaged molecules in order to protect themselves from harmful substances, research shows. Up to now, it was unclear whether this housekeeping work involves sorting out defective proteins when they digest mitochondria. Researchers have now discovered that the proteins are sorted out during the constant fusion and fission of mitochondria. |
| Telescope to track space junk using youth radio station Posted: 29 Nov 2013 07:18 AM PST A combination of pop songs, talkback radio and cutting-edge science has enabled Australian astronomers to identify a way to prevent catastrophic, multi-billion dollar space junk collisions, a new study has revealed. |
| Electricity generated from weight of traffic and pedestrians Posted: 29 Nov 2013 07:17 AM PST New technology integrates a ramp-step (elaborated with polymeric material similar to the ones used in the manufacture of tires) that elevates to five centimeters above the level of the street. When receiving the impact of a vehicle, this ramp exerts pressure on a set of bellows below. The bellows contain air that is expelled at a certain pressure through a hose; later, this element travels to a tank where it is compressed and relaunched to an electricity generating turbine. |
| Snapshots differentiate molecules from their mirror image Posted: 28 Nov 2013 11:13 AM PST Researchers are able to reveal the spatial structure of chiral molecules from work done to develop a method that takes a snapshot of chiral molecules, revealing their spatial atomic structure. The molecule's handedness, or chirality, can be directly derived from this information. |
| You are subscribed to email updates from ScienceDaily: Top News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 20 West Kinzie, Chicago IL USA 60610 | |
ScienceDaily: Top Technology News |
| Do black holes come in size medium? Posted: 29 Nov 2013 06:11 PM PST Black holes can be petite, with masses only about 10 times that of our sun -- or monstrous, boasting the equivalent in mass up to 10 billion suns. Do black holes also come in size medium? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is busy scrutinizing a class of black holes that may fall into the proposed medium-sized category. |
| Telescope to track space junk using youth radio station Posted: 29 Nov 2013 07:18 AM PST A combination of pop songs, talkback radio and cutting-edge science has enabled Australian astronomers to identify a way to prevent catastrophic, multi-billion dollar space junk collisions, a new study has revealed. |
| Electricity generated from weight of traffic and pedestrians Posted: 29 Nov 2013 07:17 AM PST New technology integrates a ramp-step (elaborated with polymeric material similar to the ones used in the manufacture of tires) that elevates to five centimeters above the level of the street. When receiving the impact of a vehicle, this ramp exerts pressure on a set of bellows below. The bellows contain air that is expelled at a certain pressure through a hose; later, this element travels to a tank where it is compressed and relaunched to an electricity generating turbine. |
| Snapshots differentiate molecules from their mirror image Posted: 28 Nov 2013 11:13 AM PST Researchers are able to reveal the spatial structure of chiral molecules from work done to develop a method that takes a snapshot of chiral molecules, revealing their spatial atomic structure. The molecule's handedness, or chirality, can be directly derived from this information. |
| You are subscribed to email updates from ScienceDaily: Top Technology News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
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 | TODAY IN SCIENCE HISTORY NEWSLETTER - 30 NOVEMBER |
| Feature for Today |
| On 30 Nov 1866, work began on the first traffic tunnel under a U.S. river, the Washington Street Tunnel in Chicago, Illinois, under the Chicago River. It was built to alleviate traffic congestion at the river's swing bridges. Iopened 1 Jan 1869 and served until 1953. Cable car companies used the tunnel from 1880s to 1906. A short article in the New York Times on the River Tunnel at Chicago gives some more background. Whereas Brunel bored the world's first tunnel under a river, the Thames over many years of great difficulties, the Chicago River only needed a 200-ft tunnel, and the article describes the much simpler approach taken for its construction. |
| Book of the Day | ||
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| Quotations for Today | |
 | [There is an] immense advantage to be gained by ample space and appropriate surroundings in aiding the formation of a just idea of the beauty and interest of each specimen... Nothing detracts so much from the enjoyment ... from a visit to a museum as the overcrowding of the specimens exhibited. - Sir William Henry Flower, English zoologist (born 30 Nov 1831).  |
 | In such sad circumstances I but see myself exalted by my own enemies, for in order to defeat some small works of mine they try to make the whole rational medicine and anatomy fall, as if I were myself these noble disciplines. - Marcello Malpighi, Italian physician, physiologist and biologist (died 30 Nov 1694). |
| I have indeed lived and worked to my taste either in art or science. What more could a man desire? Knowledge has always been my goal. There is much that I shall leave behind undone�but something at least I was privileged to leave for the world to use, if it so intends�As the Latin poet said I will leave the table of the living like a guest who has eaten his fill. Yes, if I had another life to spend, I certainly would not waste it. But that cannot be, so why complain? - L�on Croizat, Italian biogeographer, and botanist (died 30 Nov 1982). | |
| Quiz | |
| Before you look at today's web page, see if you can answer some of these questions about the events that happened on this day. Some of the names are very familiar. Others will likely stump you. Tickle your curiosity with these questions, then check your answers on today's web page. | |
| Births | |
 | Nils Dal�n, born 30 Nov 1869, was a Swedish engineer who won the Nobel Prize for Physics in 1912 for his invention of the automatic sun valve, which regulated a gaslight source by the action of sunlight and darkness It was used for buoys and unmanned lighthouses. In 1922, Dalen's Amalgamated Gas Accumulator Co. patented his design for a more efficient and cost-effective kitchen stove and began production. These stoves produced a radiant heat that kept the kitchen warm, and remains popular today. Can you name this popular stove? |
 | Andrew J. Moyer, born 30 Nov 1899, was an American microbiologist who invented a method for mass-producing an antibiotic, using a fermentation process. This large-scale production saved thousands of lives during World War II. For which antibiotic did Moyer devise large-scale production? |
| Deaths | |
 | Robert A. Swanson (1949-1999) was an American chemist who co-founded Genentech, Inc., a pioneer in the biotechnology industry. In 1978, Genentech created the first drug produced by genetic engineering. What was Genentech's drug, the first to be produced by genetic engineering? |
 | Nils Gabriel Sefstr�m (1787-1845) was a Swedish chemist who investigated a black powder a mine manager had pointed out could be obtained from a certain iron ore. Although it was similar to chromium and uranium, by analysis Sefstr�m determined it was a new element. He named it after a Norse goddess. What new element did Sefstr�m investigate? |
| Events | |
 | On 30 Nov of a certain year, John Landis Mason received a U.S. patent for his invention known by his name. The Mason jar has become a common term for the still widely used preserved food jar. In which decade was patent issued? |
 | On 30 Nov 1784, American physician and scientist John Jeffries recorded the first scientific data for free air, to a height of 9,309-ft, including twelve observations of temperature, pressure, and humidity. Jeffries' values agree closely with modern determinations. How did he travel to such a great height? |
| Answers |
| When you have your answers ready to all the questions above, you'll find all the information to check them, and more, on the November 30 web page of Today in Science History. Or, try this link first for just the brief answers. Fast answers for the previous newsletter for November 29: Fields Medal • insulin • Christian Doppler • Lord Byron • 100 • Nevada. |
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