Nvidia’s headquarters is now one of the most sought-after places to work. Spanning more than 1 million square feet combined, Nvidia’s space-ship-like buildings were designed with help from custom software powered by the AI chips that have made the company successful. WSJ gets a look inside. Photo: Nvidia.
Category: space travel – Page 62
Researchers develop new single-molecule transistor that uses quantum interference
An international team of researchers from Queen Mary University of London, the University of Oxford, Lancaster University, and the University of Waterloo have developed a new single-molecule transistor that uses quantum interference to control the flow of electrons. The transistor, which is described in a paper published in the Nature Nanotechnology (“Quantum interference enhances the performance of single-molecule transistors”), opens new possibilities for using quantum effects in electronic devices.
Transistor are the basic building blocks of modern electronics. They are used to amplify and switch electrical signals, and they are essential for everything from smartphones to spaceships. However, the traditional method of making transistors, which involves etching silicon into tiny channels, is reaching its limits.
As transistors get smaller, they become increasingly inefficient and susceptible to errors, as electrons can leak through the device even when it is supposed to be switched off, by a process known as quantum tunnelling. Researchers are exploring new types of switching mechanisms that can be used with different materials to remove this effect.
Odysseus lunar lander, 1st US craft on the moon in 50 years, has died and will ‘not complete another call home’
Odysseus, which was built by Houston-based company Intuitive Machines, powered down one week after landing as lunar night began for 14 days. Flight controllers ordered the spacecraft to snooze for three weeks, while the moon’s south pole faced away from the sun, but they hoped Odie would reawaken once sunlight hit its solar panels again.
“Intuitive Machines started listening for Odie’s wake-up signal on March 20, when we projected enough sunlight would potentially charge the lander’s power system and turn on its radio,” representatives of the company wrote on X, formerly called Twitter.
China is building a railgun that can hurl crewed spacecraft into orbit
And the g-forces???
Rockets being passé, China is working on using an electromagnetic railgun to launch crewed spacecraft the size of a Boeing 737, weighing 50 tonnes, into orbit. This remarkably ambitious project is even more ambitious than it seems at first glance.
Call it a railgun, a catapult, or a mass driver, the idea of replacing rockets with an electromagnetic accelerator is a very attractive option. Instead of lifting off on chemical rockets that have to carry fuel and fuel to lift the fuel and fuel to lift the fuel and the additional fuel, it makes more sense to keep as much of the launching system on the ground while leaving the vehicle as light as possible.
The principle behind such a space railgun is simple, but the details are surprisingly complex and the numbers involved very quickly become daunting. If China can carry off using such a system to launch a spaceplane as part of its Tengyun project that began in 2016, it would be one of history’s major engineering achievements.
SpaceX President’s Exciting Update on Next Starship Launch!
SpaceX’s Starship, despite facing challenges and setbacks, is on the verge of its fourth flight with upgraded engines and is poised to revolutionize space travel with its unprecedented lift capacity.
Questions to inspire discussion.
What is the current status of SpaceX’s Starship?
—The Starship is on the verge of its fourth flight with upgraded engines.
China Working on Giant Rail Gun to Shoot Astronauts Into Space
Chinese scientists are working on a giant electromagnetic launch track to launch a massive 50-ton spaceplane — longer than a Boeing 737 — into orbit.
As the South China Morning Post reports, the “giant rail gun” system is designed to accelerate a hypersonic aircraft to speeds of up to Mach 1.6. Once it reaches the end of the track, its engine then accelerates it to the edge of space at seven times the speed of sound.
If actually built, it could greatly cut down on the amount of fuel such a craft would need to get to space, allowing it to carry bigger payloads — and save a considerable amount of money as well.
SpaceX Starship IFT3 Aftermath: New Insights Paint Different Picture!
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The third Starship launched! How did it go? Does anything require repairs, and why did it tumble? Dream Chaser is gearing up for the launch, and ABL Space is back in action!
#SpaceX #starship #elonmusk #starbase.
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Editing: John Young, Alex Potvin, Stefanie Schlang.