Prepare to be Baffled.
The misconception is that electrons carry potential energy around a complete conducting loop, transferring their energy to the load. This video was sponsored by Caséta by Lutron.
Continue reading “The Big Misconception About Electricity” »
Architecture firm Skidmore, Owings & Merrill (SOM) has presented ‘Urban Sequoia’ – a concept for transforming the built environment into a network for absorbing carbon.
Urban Aeronautics, the Israel-based aerospace company behind the world’s first compact, wingless electric vertical takeoff, and landing (eVTOL) vehicle, is getting closer to turning its groundbreaking concept into reality. The company said it has raised the first $10 million of a $100 million funding round this week towards CityHawk from private investors in the US, Brazil, and Israel.
According to the company, the car-sized, six-seater CityHawk has more in common with birds than with nearly every other eVTOL prototype in existence. With a distinct, wingless exterior and patented fully-enclosed Fancraft rotor system, the CityHawk is mainly designed for commercial air charters and emergency medical services (EMS). It will be fueled by hydrogen, the most sustainable technology in development today. This means it must be able to conduct multiple trips within a city per day with zero emissions and minimal noise.
Continue reading “World’s first wingless, compact eVTOL aircraft moves a step closer to reality” »
The extra juice comes from a secret ingredient…corn starch.
Could a simple materials change make electric car batteries able to four times more energy? Scientists in South Korea think so. In a new paper in the American Chemical Society’s Nano Letters, a research team details using silicon and repurposed corn starch to make better anodes for lithium ion batteries.
This team is based primarily in the Korea Institute of Science and Technology (KIST), where they’ve experimented with microemulsifying silicon, carbon, and corn starch into a new microstructured composite material for use as a battery anode. This is done by mixing silicon nanoparticles and corn starch with propylene gas and heating it all to combine.
Continue reading “Corny Lithium-Ion Batteries Could Hold Quadruple the Charge” »
A team of scientists has discovered a technique to keep tadpoles alive despite removing their capacity to breathe — by injecting algae into the little froglets’ brains, turning their heads a bright, almost neon, green.
What the frog? Plants, such as algae, produce oxygen through photosynthesis. Animals, on the other hand, cannot — we typically use lungs or gills to filter it from the environment.
Continue reading “Scientists got an animal to breathe without oxygen” »
“It is like using your thumb to control the water spray from a hose,” said Ming Liu, associate professor in UC Riverside’s Marlan. “You know how to get the desired spraying pattern by changing the thumb position, and likewise, in the experiment, we read the light pattern to retrieve the details of the object blocking the five nm-sized light nozzles.”
The light is then focused into a spectrometer, where it forms a tiny ring shape. The researchers can formulate the absorption and scattering images with colors by scanning the probe over an area and recording two spectra for each pixel.
The team expects the new nano-imaging technology can be an important tool to help the semiconductor industry make uniform nanomaterials with consistent properties for use in electronic devices. The new full-color nano-imaging technique could also be used to improve understanding of catalysis, quantum optics, and nanoelectronics.
Spending most of her free time during the epidemic season to “gardening”, Ms. Ngoc Kim’s tiny balcony has turned into a vegetable garden with a variety of clean vegetables.
The vegetable garden was born during the epidemic season.
Detailed map captures 3D shapes of neurons and their synapses in stunning detail and is open to community for neuroscience and machine learning research July 29, 2021…
Several different mouse neurons virtually reconstructed in 3D show the complexity of tracing the shapes and branching axons and dendrites within a small piece of the brain.
NASA’s Parker Solar Probe has set a new pair of records after it survived its 10th close encounter with the Sun. On November 21, 2021 at 4:25 am EST (08:25 GMT), the robotic deep-space explorer came within 5.3 million miles (8.5 million km) of the Sun’s surface and reached a speed of 363,660 mph (586,864 km/h), making it both the closest satellite to survive such a near pass of the Sun and the fastest-ever artificial object.
The Parker Solar Probe was launched on August 12, 2018 from Cape Canaveral Air Force Station atop a Delta IV Heavy rocket, and this latest solar flyby between November 16 and 26 marks the halfway point in the spacecraft’s seven-year mission to study the Sun at such close quarters that it will eventually fly through the Sun’s corona.
Having easily beaten the record holder, the Helios-2 spacecraft and its maximum speed of 157,078 mph (252,792 km/h), Parker is now in a league of its own. Its latest speed record beats its own previous record, as will be the case for the future record speeds the probe is expected to reach in later flybys.
Today, Deputy Secretary of Defense Kathleen Hicks, in close collaboration with the Director of National Intelligence, directed the Under Secretary of Defense for Intelligence & Security to establish within the Office of the USD(I&S) the Airborne Object Identification and Management Synchronization Group (AOIMSG) as the successor to the U.S. Navy’s Unidentified Aerial Phenomena Task Force. The AOIMSG will synchronize efforts across the Department and the broader U.S. government to detect, identify and attribute objects of interests in Special Use Airspace (SUA), and to assess and mitigate any associated threats to safety of flight and national security. To provide oversight of the AOIMSG, the Deputy Secretary also directed the USD(I&S) to lead an Airborne Object Identification and Management Executive Council (AOIMEXEC) to be comprised of DoD and Intelligence Community membership, and to offer a venue for U.S. government interagency representation.
Incursions by any airborne object into our SUA pose safety of flight and operations security concerns, and may pose national security challenges. DOD takes reports of incursions – by any airborne object, identified or unidentified – very seriously, and investigates each one. This decision is the result of planning efforts and collaboration conducted by OUSD(I&S) and other DoD elements at the direction of Deputy Secretary Hicks, to address the challenges associated with assessing UAP occurring on or near DOD training ranges and installations highlighted in the DNI preliminary assessment report submitted to Congress in June 2021. The report also identified the need to make improvements in processes, policies, technologies, and training to improve our ability to understand UAP.
In coming weeks, the Department will issue implementing guidance, which will contain further details on the AOIMSG Director, organizational structure, authorities, and resourcing.
Several different mouse neurons virtually reconstructed in 3D show the complexity of tracing the shapes and branching axons and dendrites within a small piece of the brain.
