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Oct 20, 2023

Hologram Zoo Is Real And Signals The Future

Posted by in categories: 3D printing, holograms, mobile phones

The number of Star Trek sci-fi technology that ultimately became real-life tech never ceases to amaze. The series inspired the development of touchscreens, communicators became mobile phones, PAADs became tablets, replicators became 3D printing, and now holodecks are becoming virtual and augmented realities (VRs and ARs). And while fully immersive environments like the holodeck still remain in the realm of sci-fi, a recent report from BBC on a hologram zoo indicates that the future isn’t so far-fetched when it comes to immersive holographic.

The holograms use a new depth technology that not only makes the animals seem big but makes them visible as 3D objects rather than suspended 2D images.

According to the report, the visitors of Australia’s Hologram Zoo, which opened earlier this year, can dodge stampeding elephants, peer into the gaping jaws of a hippopotamus, pet-friendly giraffes, and witness more than 50 lifelike displays from dinosaurs to gorillas—all crafted from concentrated beams of light.

Oct 20, 2023

Giant Comet Will Fly by the Earth and Will Be Visible in the Night Sky

Posted by in categories: asteroid/comet impacts, existential risks

An huge volcanic comet, 12P/Pons-Brooks, has violently exploded for the second time in four months and it is heading towards the Earth. It will not hit the Earth but we could see it in the night sky around April 21, 2024.

It has a solid nucleus, with an estimated diameter of 18.6 miles (30 kilometers), and is filled with a mix of ice, dust and gas known as cryomagma. The comet is about three times bigger than Mount Everest. The asteroid that killed the dinosaurs was between 10 and 15 kilometers wide.

12P is currently hurtling toward the inner solar system, where it will be slingshotted around the sun on its highly elliptical 71-year orbit around the sun.

Oct 20, 2023

NASA’s Innovative Rocket Nozzle Paves Way for Deep Space Missions

Posted by in categories: innovation, space travel

NASA recently built and tested an additively-manufactured – or 3D printed – rocket engine nozzle made of aluminum, making it lighter than conventional nozzles and setting the course for deep space flights that can carry more payloads.

Oct 20, 2023

James Webb shows mysterious “sub-Neptune” is probably a water world

Posted by in category: space

The idea of a water world, a planet covered by water, has fascinated both scientists and artists for centuries. For scientists, a water world is a planet that has a great deal of water on its surface (or beneath the surface). Some studies have suggested that exoplanets with oceans are common in the Milky Way, but we haven’t really been able to find them.

This is where GJ 1,214 b comes in.

This planet (also called Gliese 1,214 b or Enaiposha) is 48 lightyears away from Earth. It’s a “sub Neptune” or “mini Neptune.” Mini Neptunes are a type of planet less massive than Neptune but resembling Neptune in general structure and in that they lack a thick hydrogen-helium atmosphere.

Oct 20, 2023

Could Neptune’s largest moon swing a spacecraft into the planet’s orbit?

Posted by in categories: energy, space

One problem with a return mission to Neptune is that a flyby focused solely on that world does not provide significant bang for the buck. Without the lucky alignment available to missions in the 1970s and ’80s, we’d have to spend even more fuel to send a probe in that direction, and we wouldn’t get that much more science than we did decades ago.

The next logical step after a successful flyby mission is an orbiter, but the extreme distance to Neptune poses significant challenges. We have no clear way to haul a large enough orbiter to the Neptune system, pack enough fuel to allow it to slow down and do it all in a reasonably short amount of time.

However, researchers have shared a radical new idea for how to overcome these challenges: Use the thin atmosphere of Triton, Neptune’s largest moon, to capture a spacecraft.

Oct 20, 2023

Astronomers detect mysterious 8 billion-year-old energetic burst

Posted by in category: space

WASHINGTON, Oct 20 (Reuters) — Astronomers have detected an intense flash of radio waves coming from what looks like a merger of galaxies dating to about 8 billion years ago — the oldest-known instance of a phenomenon called a fast radio burst that continues to defy explanation.

This burst in less than a millisecond unleashed the amount of energy our sun emits in three decades, researchers said. It was detected using the Australian SKA Pathfinder, a radio telescope in the state of Western Australia. Its location was pinpointed by the European Southern Observatory’s Very Large Telescope in Chile, one of the most powerful optical telescopes.

A fast radio burst, or FRB, is a pulse of radio-frequency electromagnetic radiation. It lasts a small fraction of a second but outshines most other sources of radio waves in the universe. Radio waves have the longest wavelengths in the electromagnetic spectrum.

Oct 20, 2023

Electrical control of quantum phenomenon could improve future electronic devices

Posted by in categories: computing, quantum physics

A new electrical method to conveniently change the direction of electron flow in some quantum materials could have implications for the development of next-generation electronic devices and quantum computers.

A team of researchers from Penn State developed and demonstrated the method in materials that exhibit the quantum anomalous Hall (QAH) effect—a phenomenon in which the flow of electrons along the edge of a material does not lose energy. The team described the work in a paper in the journal Nature Materials.

“As electronic devices get smaller and computational demands get larger, it is increasingly important to find ways to improve the efficiency of information transfer, which includes the control of electron flow,” said Cui-Zu Chang, Henry W. Knerr Early Career Professor and associate professor of physics at Penn State and co-corresponding author of the paper. “The QAH effect is promising because there is no energy loss as electrons flow along the edges of materials.”

Oct 20, 2023

A New Wonder Material Is 5x Lighter—and 4x Stronger—Than Steel

Posted by in category: materials

It’s inspired by Iron Man.

Oct 20, 2023

Rare Electronic State Discovered When Graphene Stacks Up

Posted by in categories: computing, quantum physics

The super-special material graphene continues to surprise and fascinate scientists, this time revealing a rare electronic state termed ‘ferro-valleytricity’, which occurs when graphene is stacked up in a particular five-layer combination.

When in this new state, the graphene stack exhibits weird and wonderful magnetic and electronic behavior, as reported by researchers from the Massachusetts Institute of Technology (MIT), Harvard University, and the National Institute for Materials Science in Japan.

Using graphene in this way could help in the development of both classical and quantum computers, according to the team, especially in terms of creating data storage solutions that offer large capacities but that also need relatively little energy to run.

Oct 20, 2023

Quantum Breakthrough: Record-Breaking Quantum Teleportation Achieved Over Metropolitan Range

Posted by in categories: internet, quantum physics

Quantum teleportation enables the transfer of quantum information to distant locations through the use of quantum entanglement and classical communication. This concept has been realized in various quantum light systems, ranging from laboratory-based experiments to practical real-world tests. Notably, by utilizing the low-Earth orbit Micius satellite, scientists have successfully teleported quantum information over distances exceeding 1,200 km. However, there hasn’t been a quantum teleportation system yet whose rate can reach the order of Hertz. This hinders future applications of the quantum internet.

In a paper published in Light Science & Application, a team of scientists, led by Prof. Guangcan Guo and Prof. Qiang Zhou from the University of Electronic Science and Technology of China (UESTC) cooperating with Prof. Lixing You from the Shanghai Institute of Microsystem and Information Technology of the Chinese Academy of Sciences, have improved the teleportation rate to 7.1 qubits per second for the first time based on the “No. 1 Metropolitan Quantum Internet of UESTC”.

This presents a new record for the quantum teleportation system over metropolitan range.