Science
NASA Mars Rover Curiosity Wrapping Up Waypoint Work
The Mars Hand Lens Imager on NASA's Curiosity Mars rover provided this nighttime view of a hole produced by the rover's drill and, inside the hole, a line of scars produced by the rover's rock-zapping laser. The camera used its own white-light LEDs to illuminate the scene on May 13, 2014.
- Read more
- 388 reads
Interlayer detector for ion beam milling processes
- Read more
- 318 reads
New insight into thermoelectric materials may boost green technologies: A U of Miami physicist and his collaborators find remarkable thermoelectric properties for a metal that may impact the search for materials useful in power generation, refrigeration o
Lithium purple-bronze (LiPB) is a thermoelectric material comprised of aligned conducting, zig-zag chains of molybdenum and oxygen (left image, pink and white circles with green bonds). When an electric current was applied in a direction slightly misaligned with the chains (depicted as gray lines, right image), heat flowed perpendicular to the current, a phenomenon known as the transverse Peltier effect. The efficiency of this effect in LiPB was among the largest known for a single compound.
- Read more
- 347 reads
Magnetar Formation Mystery Solved?
Magnetars are the bizarre super-dense remnants of supernova explosions. They are the strongest magnets known in the Universe — millions of times more powerful than the strongest magnets on Earth. A team of European astronomers using ESO’s Very Large Telescope (VLT) now believe they’ve found the partner star of a magnetar for the first time. This discovery helps to explain how magnetars form — a conundrum dating back 35 years — and why this particular star didn’t collapse into a black hole as astronomers would expect.
- Read more
- 390 reads
Chemotherapy timing is key to success: Nanoparticles that stagger delivery of two drugs knock out aggressive tumors in mice.
The nanoparticle contains the cancer drug doxorubicin (green spheres) in its core. Erlotinib is embedded in the red outer shell. Attached to the surface are chains of polyethylene glycol (PEG), in yellow.
- Read more
- 400 reads
Scientists Find Solution to Two Long-Standing Mysteries of Cuprate High-Temperature Superconductivity: Findings unequivocally link two "personality" changes of electrons at critical point
Disappearing stripes linked with free electron movement: Scientists used a precision microscope to simultaneously explore electrons' arrangements and movements as charge carriers called holes were added to transform a copper-oxide material from an insulator to a superconductor. With increasing hole density, the material first takes on a mysterious "pseudogap" phase that overlaps and competes with superconductivity. Region I: While still in the pseudogap phase, some electrons occupy static positions apparent as a striped pattern (top inset) while other electrons are free to move and carry current, but only in certain directions (arcs with gaps in lower inset). Region II: At a critical point of hole density, the static stripes disappear and all electrons can move freely in all directions. The point of maximal superconductivity (Max Tc) lies within this region. Finding ways to prevent the static electron arrangement may be one way to push the Max Tc to a higher temperature more suitable for real-world applications.
- Read more
- 382 reads
NASA Uses GPS to Find Sierra Water Weight
A GPS station in the mountains of Oregon.
- Read more
- 338 reads
Human Rights
Fostering a More Humane World: The 28th Eurasian Economic Summi
Conscience, Hope, and Action: Keys to Global Peace and Sustainability
Ringing FOWPAL’s Peace Bell for the World:Nobel Peace Prize Laureates’ Visions and Actions
Protecting the World’s Cultural Diversity for a Sustainable Future
Puppet Show I International Friendship Day 2020