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Forwarded from Daily Science to all
ScienceAlert - Latest
Why Your Body May Need to Shed Some Tears, Even if You Don't Feel Sad
➖ @sciencetoall ➖
Why Your Body May Need to Shed Some Tears, Even if You Don't Feel Sad
➖ @sciencetoall ➖
ScienceAlert
Why Your Body May Need to Shed Some Tears, Even if You Don't Feel Sad
It's been a big week and you feel exhausted, and suddenly you find yourself crying at a nice nappy commercial. Or maybe you are struck with a cold or the coronavirus and the fact your partner used up all the milk just makes you want to weep.
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ScienceAlert - Latest
Everything You Need to Know About Monkeypox, And Why It's Not a Cause For Fear
➖ @sciencetoall ➖
Everything You Need to Know About Monkeypox, And Why It's Not a Cause For Fear
➖ @sciencetoall ➖
ScienceAlert
Everything You Need to Know About Monkeypox, And Why It's Not a Cause For Fear
On 18 May 2022, Massachusetts health officials and the Centers for Disease Control and Prevention confirmed a single case of monkeypox in a patient who had recently traveled to Canada. Cases have also been reported in the United Kingdom and Europe.
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Mouse brain visualized by light sheet microscopy
Nature Methods (2022) doi: 10.1038/s41592-022-01468-5
Nature Methods (2022) doi: 10.1038/s41592-022-01468-5
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Forwarded from Daily Science to all
ScienceAlert - Latest
What Would Happen if Someone Moved at Twice The Speed of Light?
➖ @sciencetoall ➖
What Would Happen if Someone Moved at Twice The Speed of Light?
➖ @sciencetoall ➖
ScienceAlert
What Would Happen if Someone Moved at Twice The Speed of Light?
As far as we know, it's not possible for a person to move at twice the speed of light. In fact, it's not possible for any object with the kind of mass you or I have to move faster than the speed of light.
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ScienceAlert - Latest
The Mystery of Why So Many Lifelong Smokers Never Get Lung Cancer May Be Solved
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The Mystery of Why So Many Lifelong Smokers Never Get Lung Cancer May Be Solved
➖ @sciencetoall ➖
ScienceAlert
The Mystery of Why So Many Lifelong Smokers Never Get Lung Cancer May Be Solved
Smoking cigarettes is the number one risk factor for lung cancer, with tobacco products causing up to 90 percent of lung cancer deaths in the United States.
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An amazing little Fruit Fly of the Family Tephritidae with incredibly realistic ants on it´s wings. They look as though they are biting onto the abdomen of the fly. This fly was only about 3 mm long, but even from a distance, it looks like ants are feeding on the fly.
@science
@science
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Robotics contest will build a biomimetic robot based on winning entry
More and more, we're finding that by copying nature, we can develop technologies that are capable of performing previously impossible functions. A new contest encourages that kind of thinking, by inviting ideas for nature-inspired robots … and the winning entry will actually be made into a robot.
More and more, we're finding that by copying nature, we can develop technologies that are capable of performing previously impossible functions. A new contest encourages that kind of thinking, by inviting ideas for nature-inspired robots … and the winning entry will actually be made into a robot.
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An Artificial Retina aiming to restore sight for people with damaged retinas.
This medical implant is suitable for people who have damaged photoreceptors (cones and rods) but otherwise a functioning retina, as is the case for many patients suffering from retinitis pigmentosa or advanced dry AMD.
The implant will be inserted subretinally, where photoreceptors are located in a healthy retina. The artificial retina acts as a substitute for the damaged photoreceptors by converting light into a signal the brain can interpret.
This artificial retina is standalone and self-powered by ambient light, using photovoltaic effect: it does not require external power sources or glasses-mounted camera.
This medical implant is suitable for people who have damaged photoreceptors (cones and rods) but otherwise a functioning retina, as is the case for many patients suffering from retinitis pigmentosa or advanced dry AMD.
The implant will be inserted subretinally, where photoreceptors are located in a healthy retina. The artificial retina acts as a substitute for the damaged photoreceptors by converting light into a signal the brain can interpret.
This artificial retina is standalone and self-powered by ambient light, using photovoltaic effect: it does not require external power sources or glasses-mounted camera.
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New type of 3D printing uses sound waves to build up objects
3D printing typically involves depositing layers of molten plastic, laser-melting powdered metal, or using UV light to harden gelatinous resin. A new technique takes yet another approach, however, by utilizing sound waves.
In the current version of the technique, a transducer is used to send focused pulses of ultrasound through the sides of a chamber, into liquid polydimethylsiloxane (PDMS) resin contained within. Doing so produces ultrasonic fields, which cause rapidly oscillating microscopic bubbles to temporarily form at specific points in the resin.
As those bubbles oscillate, the temperature inside them rises to about 15,000 degrees Kelvin (14,727 ºF or 26,540 ºF) and the pressure within them climbs to over 1,000 bar (14,504 psi). Although this sudden increase in temperature and pressure only lasts for picoseconds (trillionths of a second), it causes the resin to solidify at the exact location of the bubble.
- @science -
3D printing typically involves depositing layers of molten plastic, laser-melting powdered metal, or using UV light to harden gelatinous resin. A new technique takes yet another approach, however, by utilizing sound waves.
In the current version of the technique, a transducer is used to send focused pulses of ultrasound through the sides of a chamber, into liquid polydimethylsiloxane (PDMS) resin contained within. Doing so produces ultrasonic fields, which cause rapidly oscillating microscopic bubbles to temporarily form at specific points in the resin.
As those bubbles oscillate, the temperature inside them rises to about 15,000 degrees Kelvin (14,727 ºF or 26,540 ºF) and the pressure within them climbs to over 1,000 bar (14,504 psi). Although this sudden increase in temperature and pressure only lasts for picoseconds (trillionths of a second), it causes the resin to solidify at the exact location of the bubble.
- @science -
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ScienceAlert - Latest
5 Planets Are About to Line Up in The Sky, And You Don't Even Need a Telescope
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5 Planets Are About to Line Up in The Sky, And You Don't Even Need a Telescope
➖ @sciencetoall ➖
ScienceAlert
5 Planets Are About to Line Up in The Sky, And You Don't Even Need a Telescope
Sky watchers have something extra special to look forward to later in June, as all five of the planets that we can see with the naked eye – Mercury, Venus, Mars, Jupiter, Saturn – are going to line up in the sky.
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ScienceAlert - Latest
Two Time Crystals Have Been Successfully Linked Together For The First Time
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Two Time Crystals Have Been Successfully Linked Together For The First Time
➖ @sciencetoall ➖
ScienceAlert
Two Time Crystals Have Been Successfully Linked Together For The First Time
Physicists have just taken an amazing step towards quantum devices that sound like something out of science fiction.
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Forwarded from Daily Science to all
ScienceAlert - Latest
Three Astronauts Just Arrived on China's Space Station to Spend 6 Months Completing It
➖ @sciencetoall ➖
Three Astronauts Just Arrived on China's Space Station to Spend 6 Months Completing It
➖ @sciencetoall ➖
ScienceAlert
Three Astronauts Just Arrived on China's Space Station to Spend 6 Months Completing It
Three Chinese astronauts arrived at the country's space station on Sunday, the Chinese space agency for human flights said, the latest stride in Beijing's aim to become a major space power.
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When facing a potential threat, the hawk moth caterpillar takes the form of a pit viper
Funny nature on @science
Funny nature on @science
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ScienceAlert - Latest
Curiosity Has Found Some Truly Weird-Looking, Twisty Rock Towers on Mars
➖ @sciencetoall ➖
Curiosity Has Found Some Truly Weird-Looking, Twisty Rock Towers on Mars
➖ @sciencetoall ➖
ScienceAlert
Curiosity Has Found Some Truly Weird-Looking, Twisty Rock Towers on Mars
The Curiosity rover has found an outstanding rock formation piercing the alien landscape of Mars. Amongst the shallow sands and boulders of the Gale Crater rise several twisting towers of rock – the spikes of sediment look almost like frozen str
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ScienceAlert - Latest
Earth's Magnetic Poles Probably Won't Flip After All, Scientists Predict
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Earth's Magnetic Poles Probably Won't Flip After All, Scientists Predict
➖ @sciencetoall ➖
ScienceAlert
Earth's Magnetic Poles Probably Won't Flip After All, Scientists Predict
Our planet's protective shell isn't quite what it used to be. Over the past two centuries its magnetic strength has taken a nosedive, and nobody has the foggiest idea why.
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Forwarded from Gadget and device News 🗞️
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Opening a pizzeria could soon be as simple as leasing a small business space, then sticking a robot in there. That's the idea behind the Pizzaiola system, which takes human cooks and other kitchen staff out of the equation.
@science & tech
@science & tech
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ScienceAlert - Latest
NASA Says a Tiny Space Rock Has Impacted The James Webb Space Telescope
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NASA Says a Tiny Space Rock Has Impacted The James Webb Space Telescope
➖ @sciencetoall ➖
ScienceAlert
NASA Says a Tiny Space Rock Has Impacted The James Webb Space Telescope
In its new home far from Earth, the James Webb Space Telescope maybe isn't quite as alone as it seems.
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