Mars’ early surface likely resembled a mud stew of water and volcanic-like processes, say researchers.
A large number of mountain cones in Mars’ northern hemisphere are likely the product of ancient mud volcanoes, says a new paper.
At the agency’s Jet Propulsion Laboratory, team members are building the Coronagraph Instrument for the spacecraft and contributing to the mission’s science goals.
NASA is naming its next-generation space telescope currently under development, the Wide Field Infrared Survey Telescope (WFIRST), in honor of Nancy Grace Roman, NASA’s first chief astronomer, who paved the way for space telescopes focused on the broader universe.
Acoustofluidics is the fusion of acoustics and fluid mechanics which provides a contact-free, rapid and effective manipulation of fluids and suspended particles. The applied acoustic wave can produce a non-zero time-averaged pressure field to exert an acoustic radiation force on particles suspended in a microfluidic channel. However, for particles below a critical size the viscous drag force dominates over the acoustic radiation forces due to the strong acoustic streaming resulting from the acoustic energy dissipation in the fluid. Thus, particle size acts as a key limiting factor in the use of acoustic fields for manipulation and sorting applications that would otherwise be useful in fields including sensing (plasmonic nanoparticles), biology (small bioparticle enrichment) and optics (micro-lenses).
Although acoustic nanoparticle manipulation has been demonstrated, terahertz (THz) or gigahertz (GHz) frequencies are usually required to create nanoscale wavelengths, in which the fabrication of very small feature sizes of SAW transducers is challenging. In addition, single nanoparticle positioning into discrete traps has not been demonstrated in nanoacoustic fields. Hence, there is a pressing need to develop a fast, precise and scalable method for individual nano- and submicron scale manipulation in acoustic fields using megahertz (MHz) frequencies.
An interdisciplinary research team led by Associate Professor Ye Ai from Singapore University of Technology and Design (SUTD) and Dr. David Collins from University of Melbourne, in collaboration with Professor Jongyoon Han from MIT and Associate Professor Hong Yee Low from SUTD, developed a novel acoustofluidic technology for massively multiplexed submicron particle trapping within nanocavities at the single-particle level.
Using two flat-top diamonds and a lot of pressure, scientists have forced a magnetic crystal into a spin liquid state, which may lead to insights into high-temperature superconductivity and quantum computing.
It sounds like a riddle: What do you get if you take two small diamonds, put a small magnetic crystal between them and squeeze them together very slowly?
The answer is a magnetic liquid, which seems counterintuitive. Liquids become solids under pressure, but not generally the other way around. But this unusual pivotal discovery, unveiled by a team of researchers working at the Advanced Photon Source (APS), a U.S. Department of Energy (DOE) Office of Science User Facility at DOE’s Argonne National Laboratory, may provide scientists with new insight into high-temperature superconductivity and quantum computing.
China is no stranger to far-reaching plans with massive price tags that appear to achieve little. There is no guarantee this programme will deliver the economic rejuvenation its proponents promise. Unlike previous efforts to resuscitate the economy with “dumb” bridges and highways, this newly laid digital infrastructure will help national champions develop cutting-edge technologies.
The tech investment push is part of a fiscal package waiting to be signed off by China’s legislature, the National People’s Congress, which convenes this week.
As I lie on a wooden floor stretched out in Savasana (Corpse Pose), my mind is calm after an hour of vigorous exercise and deep breathing. The people around me are still and the room is quiet, save for the sounds of slow, gentle inhalation and exhalation. It could be the final moments of any yoga class. But then the man next to me suddenly lets out a thunderous guffaw. Across the room, a woman giggles in response. Soon the entire room is alive with sound—chortles and chuckles, hearty laughs and howling hoots. It’s not any class. It’s Laughter Yoga.
Nanoparticle levitated by light rotates at 300 billion rpm
WEST LAFAYETTE, Ind. — A dumbbell-shaped nanoparticle powered just by the force and torque of light has become the world’s fastest-spinning object.
A new era in human space flight is upon us. In the coming days, NASA, with SpaceX’s Falcon 9 and Crew Dragon, will launch two Americans from US soil for the first time in almost ten years since the Space Shuttle’s retirement. Today I present you with this infographic showing how they will send a crewed spacecraft to the International Space Station and returning them safely home. My plan is to update the information in the infographic as the mission progresses to its conclusion then present a final commemorative historic infographic portrayal of the Demo-2 Mission. To download a large free printable version, go to my website http://www.tonybela.com/
Godspeed gentlemen, you are good to go. Cheers, Tony.
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Russia launched a military satellite to orbit on Friday (May 22), and the mission generated plenty of drama in the downward direction as well.
