social.sokoll.com
"Don't you ever clean up around here? Some of this dust is older than the planet!"
SERIOUSLY.
Geoboffins find the oldest matter on Earth: Ancient stardust created before the Solar System formed • The Register
https://www.theregister.co.uk/2020/01/14/oldest_matter_on_earth/
Capsule summary: Experiments studying samples from the Murchison meteorite have found dust that had to have formed around a different star older than ours.
#science #astronomy #spaceGeoboffins find the oldest matter on Earth: Ancient stardust created before the Solar System formed
That's way, way, way older than the dust off your oldest PCwww.theregister.co.uk
That's way, way, way older than the dust off your oldest PCwww.theregister.co.uk
Huygens landing spin mystery solved
Fifteen years ago today, ESA’s Huygens probe made history when it descended to the surface of Saturn’s moon Titan and became the first probe to successfully land on another world in the outer Solar System. However, during its descent, the probe began spinning the wrong way – and recent tests now reveal why.
#space #science #esa #europeanspaceagency
posted by pod_feeder_v2Huygens landing spin mystery solved
Fifteen years ago today, ESA’s Huygens probe made history when it descended to the surface of Saturn’s moon Titan and became the first probe to successfully land on another world in the outer Solar System. However, during its descent, the probe began spinning the wrong way – and recent tests now reveal why.www.esa.int
Fifteen years ago today, ESA’s Huygens probe made history when it descended to the surface of Saturn’s moon Titan and became the first probe to successfully land on another world in the outer Solar System. However, during its descent, the probe began spinning the wrong way – and recent tests now reveal why.www.esa.int
#science #sciencemanuelacasasoli
Big data are difficult to handle. These tips and tricks can smooth the way.Eleven tips for working with large data sets
Big data are difficult to handle. These tips and tricks can smooth the way.www.nature.com
Big data are difficult to handle. These tips and tricks can smooth the way.www.nature.com
Um ihre Chancen bei einer Frau einzuschätzen, ziehen manche Männer auch Hinweise heran, die mit der Sache nichts zu tun habenwww.spektrum.de
Know any chemistry?
Particularly the chemistry of, um, highly unstable, heavily nitrated compounds?
I just dare you to try to read this latest missive from Derek Lowe with a straight face.What This Here Compound Needs Is Some Hydrogen Peroxide | In the Pipeline
https://blogs.sciencemag.org/pipeline/archives/2016/09/27/what-this-here-compound-needs-is-some-hydrogen-peroxide
#chemistry #science #BOOMWhat This Here Compound Needs Is Some Hydrogen Peroxide
As an organic chemist, I am willing to deal with the occasional bang or kapow in the lab, as long as things don't get too out of hand. You're supposed to know enough to be on guard against the sorts of compounds most likely to do that and be ready for them in case they decide to make the thermodynamblogs.sciencemag.org
As an organic chemist, I am willing to deal with the occasional bang or kapow in the lab, as long as things don't get too out of hand. You're supposed to know enough to be on guard against the sorts of compounds most likely to do that and be ready for them in case they decide to make the thermodynamblogs.sciencemag.org
The man lived in a developed country with access to free healthcare.arstechnica.com
#science
#health
(https://www.sciencemag.org/news/2020/01/italian-scientist-has-become-celebrity-fighting-vaccine-skeptics?utm_source=newsfromscience%3Dflipboard%3Dflipboard2446912)This Italian scientist has become a celebrity by fighting vaccine skeptics
Virologist Roberto Burioni’s blunt putdowns win fans but dismay somewww.sciencemag.org
Virologist Roberto Burioni’s blunt putdowns win fans but dismay somewww.sciencemag.org
#science #sciencemanuelacasasoli
Tuberculosis vaccine finds an improved route
A widely used vaccine against tuberculosis has now been shown to provide almost complete protection when injected intravenously. This is a striking improvement over vaccination through the typical intradermal route.
Darrah et al. (2020) Prevention of tuberculosis in macaques after intravenous BCG immunization: https://www.nature.com/articles/s41586-019-1817-8Tuberculosis vaccine finds an improved route
Intravenous injection increases the efficacy of an anti-tuberculosis vaccine.www.nature.com
Intravenous injection increases the efficacy of an anti-tuberculosis vaccine.www.nature.com
Why introductory chemistry is boring: a long-term historical perspective | 21st Night
https://get21stnight.com/2019/12/27/why-introductory-chemistry-is-boring-a-long-term-historical-perspective/
#science #longread
Diet has rapid effects on sperm quality
https://m.phys.org/news/2019-12-diet-rapid-effects-sperm-quality.html
#scienceDiet has rapid effects on sperm quality
Sperm are influenced by diet, and the effects arise rapidly. This is the conclusion of a study by researchers at Linköping University, in which healthy young men were fed a diet rich in sugar. The study, ...m.phys.org
Sperm are influenced by diet, and the effects arise rapidly. This is the conclusion of a study by researchers at Linköping University, in which healthy young men were fed a diet rich in sugar. The study, ...m.phys.org
2011 endete eine Ära: Zum letzten Mal hob ein Spaceshuttle ab. Es folgte der Abstieg der staatlichen Raumfahrt, zumindest der westlichen und der Aufstieg privater Firmen wiewww.golem.de
#science #sciencemanuelacasasoli
In the vast arsenal of animal weaponry, the most exaggerated, elaborate and diverse devices such as tusks, claws and antlers have not been shaped by a need to fend off fierce predators. Rather, these impressive forms are driven by sex.The Weapons of Sexual Rivalry
Male competition and female preferences have driven arms races for the flashiest horns, antlers, pincers, tusks and clawswww.scientificamerican.com
Male competition and female preferences have driven arms races for the flashiest horns, antlers, pincers, tusks and clawswww.scientificamerican.com
Clickbait? We've heard of ITwww.theregister.co.uk
Drinkers will soon be cheering all the way to the bar thanks to a team of scientists who have taken a big step forward in solving the puzzle of how to make the perfect head of beer.m.phys.org
Earth from Space: Tromsø
Video: 00:02:34
This week's edition of the Earth from Space programme features a Copernicus Sentinel-2 image over Tromsø – the largest city in northern Norway.
See also Tromsø, Norway to download the image.
#news #space #science #esa #europeanspaceagency
posted by pod_feeder_v2
#science #sciencemanuelacasasoli
A study challenged the evidence for the mysterious antigravitational force known as dark energy. Then cosmologists shot back.No Dark Energy? No Chance, Cosmologists Contend | Quanta Magazine
A study challenged the evidence for the mysterious antigravitational force known as dark energy. Then cosmologists shot back.www.quantamagazine.org
A study challenged the evidence for the mysterious antigravitational force known as dark energy. Then cosmologists shot back.www.quantamagazine.org
The sprite before Christmas
Image:
Someone decked the skies with boughs of sprites.
The red jellyfish in the sky is a unique red sprite high above a storm across the southern plains of the United States.
Taken in the early hours of 21 October by outdoor photographer Paul Smith, red sprites, along with blue jets and elves, are elusive electrical discharges in the upper atmosphere that are difficult to study as they occur over thunderstorms and propagate out into space.
“There were some very strong events and many dancing sprites as the storms matured,” says Paul.
“I was so amazed to capture some very bright reflections in the lake I was shooting from. I was out until the early hours of the morning and got home at 5:00, but so worth it!” The photo was taken from Lake Acadia, Oklahoma. Watch a video of the storm .
Sightings of these elusive high altitude optical phenomena had long been based on hearsay and appeared to be linked with thunderstorms. First camera images of red sprites were obtained about 30 years ago. The scientific community was intrigued and wanted to learn more, leading to the creation of an observatory that is now aboard the International Space Station.
Called the Atmosphere-Space Interactions Monitor, or ASIM, the suite of instruments includes optical cameras and photometers to capture red sprites and other high altitude luminous events as well as lightning. ASIM also carries a Gamma-ray detector to study so-called Terrestrial Gamma-ray Flashes (TGFs).
All these instruments are mounted together outside the European Columbus module and look downwards towards the Earth. The combination of optical and Gamma-ray detectors in the same payload makes it possible to describe the lightning processes that lead to TGF emissions. ASIM provides the highest ever spatial and temporal resolution for the study of electrical activity linked to thunderstorms.
New data from ASIM will improve our understanding of the effect of thunderstorms on the atmosphere and thus contribute to more accurate climate models.
The data ASIM is generating has been made available to the public for the first time and can be consulted at the ASIM Science Data Center. A recent paper was also published in Science magazine.
Though they are difficult to detect due to their faintness and the fact that they disappear within milliseconds, the conditions from Earth were just right to catch these sprites in action.
You can find more of Paul’s work on his website, Facebook, Twitter, and YouTube.
#news #space #science #esa #europeanspaceagency
posted by pod_feeder_v2
The sprite before Christmas
Image:
Someone decked the skies with boughs of sprites.
The red jellyfish in the sky is a unique red sprite high above a storm across the southern plains of the United States.
Taken in the early hours of 21 October by outdoor photographer Paul Smith, red sprites, along with blue jets and elves, are elusive electrical discharges in the upper atmosphere that are difficult to study as they occur over thunderstorms and propagate out into space.
“There were some very strong events and many dancing sprites as the storms matured,” says Paul.
“I was so amazed to capture some very bright reflections in the lake I was shooting from. I was out until the early hours of the morning and got home at 5:00, but so worth it!” The photo was taken from Lake Acadia, Oklahoma. Watch a video of the storm .
Sightings of these elusive high altitude optical phenomena had long been based on hearsay and appeared to be linked with thunderstorms. First camera images of red sprites were obtained about 30 years ago. The scientific community was intrigued and wanted to learn more, leading to the creation of an observatory that is now aboard the International Space Station.
Called the Atmosphere-Space Interactions Monitor, or ASIM, the suite of instruments includes optical cameras and photometers to capture red sprites and other high altitude luminous events as well as lightning. ASIM also carries a Gamma-ray detector to study so-called Terrestrial Gamma-ray Flashes (TGFs).
All these instruments are mounted together outside the European Columbus module and look downwards towards the Earth. The combination of optical and Gamma-ray detectors in the same payload makes it possible to describe the lightning processes that lead to TGF emissions. ASIM provides the highest ever spatial and temporal resolution for the study of electrical activity linked to thunderstorms.
New data from ASIM will improve our understanding of the effect of thunderstorms on the atmosphere and thus contribute to more accurate climate models.
The data ASIM is generating has been made available to the public for the first time and can be consulted at the ASIM Science Data Center. A recent paper was also published in Science magazine.
Though they are difficult to detect due to their faintness and the fact that they disappear within milliseconds, the conditions from Earth were just right to catch these sprites in action.
You can find more of Paul’s work on his website, Facebook, Twitter, and YouTube.
#news #space #science #esa #europeanspaceagency
posted by pod_feeder_v2
Objective: Preventing or minimising beer loss when opening a can of beer is socially and economically desirable. One theoretically grounded approach is tapping the can prior to opening, although this has never been rigorously evaluated. We aimed to evaluate the effect of tapping a can of beer on beer loss. Methods: Single centre parallel-group randomised controlled trial. 1031 cans of cans of beer of 330mL were randomised into one of four groups before the experiment: unshaken/untapped (n=256), unshaken/tapped (n=251), shaken/untapped (n=249), or shaken/tapped (n=244). The intervention was tapping the can of beer three times on its side with a single finger. We compared tapping versus non-tapping for cans that had been shaken for 2 minutes or were unshaken. Three teams weighed, tapped or did not tap, opened cans, absorbed any beer loss using paper towels, then re-weighed cans. The teams recorded the mass of each can before and after opening with an accuracy of +/-0.01 grams. Main outcome measure: The main outcome measure was beer loss (in grams). This was calculated as the difference in the mass of the beer after the can was opened compared to before the can was opened. Results: For shaken cans, there was no statistically significant difference in the mass of beer lost when tapping compared to not tapping (mean difference of -0.159g beer lost with tapping, 95% CI -0.36 to 0.04). For unshaken cans, there was also no statistically significant difference between tapping and not tapping. Conclusion: These findings suggest that tapping shaken beer cans does not prevent beer loss when the container is opened. Thus, the practice of tapping a beer prior to opening is unsupported. The only apparent remedy to avoid liquid loss is to wait for bubbles to settle before opening the can.arxiv.org
Azteca ant colonies move the same way leopards' spots form
https://m.phys.org/news/2019-12-azteca-ant-colonies-leopards.html
#science
#biologyAzteca ant colonies move the same way leopards' spots form
What could Azteca ants in coffee farms in Mexico have in common with leopards' spots and zebras' stripes?m.phys.org
What could Azteca ants in coffee farms in Mexico have in common with leopards' spots and zebras' stripes?m.phys.org
#science #sciencemanuelacasasoli
Superconductivity mystery turns 25
In 1994, an unconventional form of superconductivity was detected in strontium ruthenate. The discovery has shed light on the mechanism of unconventional superconductivity at high temperatures.
Pustogow et al. Constraints on the superconducting order parameter in Sr2RuO4 from oxygen-17 nuclear magnetic resonance: https://www.nature.com/articles/s41586-019-1596-2Superconductivity mystery turns 25
The impact of a key superconductivity discovery from 1994.www.nature.com
The impact of a key superconductivity discovery from 1994.www.nature.com
#science #sciencemanuelacasasoli
Smallpox was eradicated relatively quickly, but other diseases have proved harder to eliminate. The reasons are a mix of biology and psychology.
https://www.quantamagazine.org/why-smallpox-is-no-more-but-polio-and-other-diseases-persist-20191203/Why Smallpox Is No More but Polio and Other Diseases Persist | Quanta Magazine
Smallpox was eradicated relatively quickly, but other diseases have proved harder to eliminate. The reasons are a mix of biology and psychology.www.quantamagazine.org
Smallpox was eradicated relatively quickly, but other diseases have proved harder to eliminate. The reasons are a mix of biology and psychology.www.quantamagazine.org
Archivists Are Trying to Make Sure a ‘Pirate Bay of Science’ Never Goes Down - VICE
#science #cultureArchivists Are Trying to Make Sure a ‘Pirate Bay of Science’ Never Goes Down
A new project aims to make LibGen, which hosts 33 terabytes of scientific papers and books, much more stable.www.vice.com
A new project aims to make LibGen, which hosts 33 terabytes of scientific papers and books, much more stable.www.vice.com
