World's smallest droplets created

   May 18, 11:32 am

Washington, May 18 (ANI): Physicists in Switzerland may have created the smallest drops of liquid ever made in the lab.

That possibility has been raised by the results of a recent experiment conducted by Vanderbilt physicist Julia Velkovska and her colleagues at the Large Hadron Collider, the world's largest and most powerful particle collider located at the European Laboratory for Nuclear and Particle Physics (CERN) in Switzerland.

Evidence of the minuscule droplets was extracted from the results of colliding protons with lead ions at velocities approaching the speed of light.

According to the scientists' calculations, these short-lived droplets are the size of three to five protons.

To provide a sense of scale, that is about one-100,000th the size of a hydrogen atom or one-100,000,000th the size of a virus.

"With this discovery, we seem to be seeing the very origin of collective behavior," Velkovska, professor of physics at Vanderbilt who serves as a co-convener of the heavy ion program of the CMS detector, the LHC instrument that made the unexpected discovery, said.

"Regardless of the material that we are using, collisions have to be violent enough to produce about 50 sub-atomic particles before we begin to see collective, flow-like behavior," she said.

These tiny droplets "flow" in a manner similar to the behavior of the quark-gluon plasma, a state of matter that is a mixture of the sub-atomic particles that makes up protons and neutrons and only exists at extreme temperatures and densities.

Cosmologists propose that the entire universe once consisted of this strongly interacting elixir for fractions of a second after the Big Bang when conditions were dramatically hotter and denser than they are today.

Now that the universe has spent billions of years expanding and cooling, the only way scientists can reproduce this primordial plasma is to bang atomic nuclei together with tremendous energy.

The findings are published in the journal Physics Letters B. (ANI)

Did the `first murder` on Earth take place 430,000 yrs ago? May 28, 2:16 pm
Washington, May 28 (ANI): Scientists have identified lethal wounds on a 430,000 years old human skull, which may have been the very first murder in human history.
Full Story
Another species of 'modern humans' existed along with 'Lucy' 3.5 mln yrs ago May 28, 1:44 pm
Washington, May 28 (ANI): A new study has examined that humans have a new ancestor i.e. a new hominin species called Australopithecus deyiremeda that most probably lived at the same time as the "Lucy" species in Ethiopia.
Full Story
Perfume scientists use nose expertise to design 'stink-less' latrines May 28, 10:12 am
Washington, May 28 (ANI): Perfume researchers have combined nose expertise and technology to come up with less odorous latrines.
Full Story
These Handheld robots can guide you in everyday tasks May 27, 7:33 pm
Washington, May 27 (ANI): A team of researchers have developed a prototype of handheld robots which can understand how best to interact with a tool that "knows and acts".
Full Story
Comments

LATEST STORIES
TOP VIDEO STORIES
PHOTO GALLERY