Results 876 to 900 of 1517
Thread: Cool Science thread
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10-23-2019, 07:36 PM #876
Auto-brewery syndrome? Man can brew alcohol in his gut...
https://www.forbes.com/sites/brucele.../#5655ba3e4446
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11-01-2019, 10:09 AM #877
Living skin can now be 3-D-printed with blood vessels included
https://m.medicalxpress.com/news/201...d-vessels.html
Researchers at Rensselaer Polytechnic Institute have developed a way to 3-D print living skin, complete with blood vessels. The advancement, published online today in Tissue Engineering Part A, is a significant step toward creating grafts that are more like the skin our bodies produce naturally.
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In this paper, the researchers show that if they add key elements—including human endothelial cells, which line the inside of blood vessels, and human pericyte cells, which wrap around the endothelial cells—with animal collagen and other structural cells typically found in a skin graft, the cells start communicating and forming a biologically relevant vascular structure within the span of a few weeks.
But I have a feeling it'll be more like this...
Last edited by reckless toboggan; 11-03-2019 at 01:00 PM.
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11-01-2019, 05:13 PM #878Registered User
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11-04-2019, 05:41 AM #879watch out for snakes
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11-05-2019, 07:57 AM #880
https://phys.org/news/2019-11-scient...imits-ice.html
Smallest possible particle of water ice is 90 molecules. Nanodrops with between 90 and 150 water molecules show an oscillating behavior between liquid and ice states. Relevant to atmospheric and space sciences, plus potential headway into molecular behavior studies with other materials.
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11-10-2019, 11:24 PM #881
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11-11-2019, 02:51 AM #882
This channell continues to boggle my noggin. If you are a math nerd and understand big numbers you might want to sit down...
https://youtu.be/XglOw2_lozc
Sent from my SM-T810 using Tapatalk
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11-11-2019, 06:45 AM #883Registered User
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11-11-2019, 08:40 AM #884
Hypothetical nuclear waste danger elimination strategy via blasting it with lasers to knock the protons out of the nucleus. Eezee peezee.
https://www.extremetech.com/extreme/...until-its-safeMaster of mediocrity.
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11-11-2019, 10:29 AM #885
Blasting nuclear waste with lasers? What could possibly go wrong?
On a similar note--commercially viable fusion may be getting closer (just like autonomous cars?)_
https://www.washingtonpost.com/opini...aving-reality/
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11-11-2019, 10:31 AM #886
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11-11-2019, 03:08 PM #887
ultrablack
On hitting the white background, the light bounced back almost unimpeded, as rude as a glaring headlight in a rearview mirror. The beam moved to the first black disk, a rondel of engineered carbon now more than a decade old. The light dimmed significantly, as a sizable tranche of the incident photons were absorbed by the black pigment, yet the glow remained surprisingly strong.
Finally Dr. Woods trained his pointer on the second black disk, and suddenly the laser’s brilliant beam, its brash photonic probe, simply — disappeared. Trillions of light particles were striking the black disk, and virtually none were winking back up again. It was like watching a circus performer swallow a sword, or a husband “share” your plate of French fries: Hey, where did it all go?
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11-11-2019, 05:35 PM #888
Did anybody catch the transit of Mercury today? Heavy overcast all morning here in Ventura, but did I did check it out on some live webcam/telescopes.
https://www.space.com/mercury-transi...ia-photos.html
I agree it is a constitutional right for Americans to be assholes...its just too bad that so many take the opportunity...iscariot
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11-13-2019, 07:58 AM #889Been there, skied that.
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visualizing the speed of light, pretty cool imo:
https://www.visualcapitalist.com/vis...fast-but-slow/TGR forums cannot handle SkiCougar !
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11-13-2019, 12:53 PM #890
The concentration of O2 in Mars' atmosphere fluctuates seasonally and NASA has no idea why: https://phys.org/news/2019-11-mars-m...curiosity.html
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11-14-2019, 10:32 AM #891
Polymeric nitrogen: https://phys.org/news/2019-11-stabil...en-plasma.html
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11-14-2019, 02:50 PM #892Funky But Chic
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11-14-2019, 04:01 PM #893
It is fast, but space is huuuuuuge. SOL is fixed, anything with a mass greater than a photon simply can't exceed it. Space, however, is quite malleable. Star Trek-style warp drive is theoretically possible and works by contracting and expanding space rather than increasing the kinetic energy of a spacecraft or other object. Unfortunately, current theory says creation of such a "warp bubble" requires an amount of energy equivalent to the mass of Jupiter on the low end and the mass of the entire universe on the high end. It also requires an as-yet undiscovered "exotic matter" that has negative mass. Don't hold your breath.
The bottom line is that living, breathing human beings are exceedingly unlikely to ever venture beyond our solar system. Ray Kurzweil has some interesting speculation about molecule-sized nanobots that could be accelerated to near-SOL speeds (we do this with single atoms already in particle accelerators) and could then multiply and self-assemble into large complex structures upon reaching their destination(s). But, that's a far cry from how most of us envision human colonization of the galaxy. Any human creation ever reaching a galaxy beyond the Milky Way? Just forget about that shit. Most sci-fi doesn't even attempt to go there.
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11-14-2019, 05:06 PM #894
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11-14-2019, 06:02 PM #895
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11-15-2019, 09:42 AM #896
Pretty much. I suppose there might be ways to tap into dark energy, but that would first require figuring out what dark energy actually is....
The spacewalk NASA is conducting to repair the ISS's cosmic particle detector sounds pretty badass.
https://www.upi.com/Science_News/201...5021573763624/
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11-20-2019, 12:43 PM #897Head down, push foreword
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Humans put into suspended animation for first time
https://amp.theguardian.com/science/...mpression=true
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11-20-2019, 01:34 PM #898
Ugh, those "suspended animation" headlines are pure clickbait trash. It's cool what they're doing, but it's sure as hell not "suspended animation." It's also not actually new at all. Induced hypothermia was commonly used for open-heart surgery prior to perfection of heart-lung machines. They've just refined the technique so that it can buy some time for patients with severe trauma and blood loss.
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11-20-2019, 01:40 PM #899
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11-20-2019, 02:00 PM #900
The record for the strongest gamma ray burst has been shattered. Photons from the visible light your eyes see carry about 1 electron volt of energy. Photons from the the previous GRB record-holder were about 94 billion electron volts. Photon energies from the new record holder were as high as 1 trillion electron volts.
https://gizmodo.com/strongest-gamma-...ati-1839961359
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