MRI of a banana
no wonder they’re so good
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Theoretical sciences, astrophysics, and original content from logical conclusions about life, the universe, and everything.
'Hyperclusters' of the Universe — “Something is Behaving Very Strangely”
" The science team concluded that it could mean that gravity or dark energy – or something completely unknown – is behaving very strangely."
Whoa you mean that gravity is behaving like… gravity??? And that dark matter is just a buzz word to keep funding alive????????? Crazy.
WHY DOES NO ONE EVER ACTUALLY BOTHER TO READ THE SOURCE, BUT DECIDE THEY KNOW ENOUGH TO ARGUE ABOUT IT?
The radar is malfunctioning. Repeat, the radar is malfunctioning.
Stop. Don’t reblog that helical solar system on the Tumblr Radar or if you find it on a friend’s blog. Don’t like it. Don’t put it on Twitter or tell your friends on Facebook. Don’t go on and on about how you never knew that the solar system traveled this way through space. Don’t make sounds with your mouth like an explosion and say “Mind Blown!” because you never considered that the planets are rotating as they fly through space like a vortex. How did no one ever notice this revolutionary theory before?!?
Because it’s B.S., that’s why. I eviscerated the science (along with Phil Plait) back in March, when it made the rounds the first time. It’s a nifty animation, but it’s just not at all realistic.
As of now it has 130K+ notes on Tumblr, which makes Carl Sagan’s stardust cry. Chances are we can’t get everyone to delete it, but maybe we can spread the word that it isn’t true? And maybe we can at least get it off the radar? Truth soldiers of science, roll out!
Using your imagination to imagine new possibilities is a cornerstone of scientific discovery, but using fancy graphics to fool people into believing bad science is just mean. Here’s why the helical model of the solar system is a toilet-like vortex of bad science.
WHY DO I KEEP SEEING THIS GIF
Demystifying Mass ft. Sean Carroll
This video was inspired by my Veritasium video - your mass is NOT from the Higgs Boson: https://www.youtube.com/watch?v=Ztc6QPNUqls
The point in that video is that the Higgs mechanism provides mass to fundamental particles but that mass is much less than the mass of the conglomerate particles they make up. This video was an effort to disentangle the different aspects and types of mass. Thanks to Sean Carroll for taking the time to discuss this with me. Check out his page: http://preposterousuniverse.com/
A hypothesized mechanism for the origin of life, an event called abiogenesis. In this version, called RNA world, small molecules called nucleotides formed in the waters of the early Earth during the Hadean Eon, and polymerized on the surface of clay minerals. These simple chains of RNA could replicate themselves in solution, but only slowly and inaccurately. An RNA molecule developed which would fold into a structure that catalyzed RNA polymerization; a ribozyme. The first ribozymes would replicate their sister strands, and produce copies of themselves and other RNA molecules.
In the same environment, long chains of carbon molecules called phospholipids were formed. These molecules have two parts, the tail, which is hydrophobic, and the head, which is hydrophillic. Because of these properties phospholipids will stick together and form micelles and vesicles in water. Vesicles can absorb RNA nucleotides, concentrating them and creating a space where they can replicate, mutate and evolve. At some point a ribozyme became enclosed within a vesicle, starting a chain reaction that evolved into the multitude of biological forms that we see today.
Because this event occurred more than 3.8 billion years ago, theories about how and where it happened are highly speculative. Possible environments for abiogensis include hydrothermal vents on the ocean floor, hyper saline bubbles of water trapped in ice, radioactive lakes or lagoons on earths surface, and even in space or on another planet, brought to earth through a panspermia event. We have very little molecular evidence of the first cells, but ribozymes and catalytic RNA molecules are embedded in the DNA replication machinery of all life. Because evidence of this event has almost certainly been lost to time, the true mechanisms of the origin of life may remain a mystery to science.
Senza alcun dubbio la parte che preferisco è la formazione della membrana cellulare.
Ma è una cosa mia.
Voi continuate ad ammirare il DNA.
3D Printers May Be As Hazardous To Your Health As Cigarettes, According To New Study
After conducting a landmark study on the airborne particle emissions from commercially available desktop 3D printers, researchers from the Illinois Institute of Technology are warning consumers this month of the health hazards associated with using 3D printers, going so far as to compare the use of the machines indoors to smoking cigarettes.
The study — which, according to Phys.org, is the first of its kind — revealed that desktop 3D printers can spew a considerable amount of potentially harmful ultrafine particles (UFPs) into the air when used.
(Source: The Huffington Post)
Physicists have discovered a jewel-shaped geometric object that challenges the notion that space and time are fundamental constituents of nature.
Of course, you can always watch seven of them in video form thanks to Bill Gates.
If anyone needs me, I’ll be in my physics bunk.
These images from Earth Observatory show islands creating ‘von Karman vortices’ in the stratocumulus clouds. In the animation you can see that each vortex is formed from alternating sides of the object that is impeding flow of the fluid such as clouds or soap films.
In the first image, the water droplets in the clouds create an optical phenomena known as ‘Glory’, making the rainbow to the left. However, this is different from a rainbow, in that it is formed from backwards diffraction meaning they are always directly opposite to the Sun.
We <3 von Karman vortices.
Human Brain Mapped in 3-D with Highest Resolution Ever
Scientists have created the highest resolution 3D digital model yet made of a human brain, showing features as small as 20 micrometres across (much better than the current models, which have accuracy of about 1 millimetre) – thinner than a human hair and almost on the scale of individual cells.
At 50 times the resolution of any available anatomical atlas of the brain “BigBrain” will give scientists their closest look yet at the structures that underlie aspects of the organ, ranging from cognition and language to ageing and disease.
The brain was sliced into more than 7,400 sections, each no more than 20 micrometres thick. The slices were stained to highlight the different types of cell present and then scanned into a computer, creating around a terabyte of data – equivalent to about 120 video DVDs. The slices were then reconstructed into a whole 3D digital brain.
BigBrain, part of the European Human Brain Project, will help scientists put the ever-rising flood of genetic and molecular findings about the brain into context. The full data set for BigBrain project is to be made freely available at the CBRAIN Portal.
Using this reference model of the brain would allow teams of researchers around the world to compare their results and tease out differences in the brains of healthy and unwell people. The 3D brain is expected also to help in clinical settings.
For neuroscientists, BigBrain will act as a scaffold upon which further layers of information about the function of the living brain might be overlaid as discoveries are made.
BigBrain comes in the wake of announcements across the world of projects to map the human brain in ever greater detail. The European commission awarded €500m over 10 years to the Human Brain Project in January, which incorporates the BigBrain consortium.
In April, the US president, Barack Obama, launched a $100m project called the Brain Research Through Advancing Innovative Neurotechnologies Initiative, to map the human brain in action.
Seeing what and who we are being sliced thin has always been creepy and haunting, but at the same time quite humbling.