•   
  •   
  •   

Technology Research breakthrough: Superconductivity already works at room temperature

22:25  17 october  2020
22:25  17 october  2020 Source:   stern.de

What to expect on Day 4 of Democratic convention: Joe Biden to accept nomination for president

  What to expect on Day 4 of Democratic convention: Joe Biden to accept nomination for president In accepting Democratic nomination, Joe Biden is expected to contrast himself to President Donald Trump with proposals for the pandemic and economy.Portland police fire crowd control munitions to disperse protesters

Room temperature

A research team led by Ranga Dias from the University of Rochester has managed to produce a superconductor that works at room temperature. "Because of the problems of low temperatures, materials with these extraordinary properties have not changed the world quite as much as many people might have imagined," says Dias. "Our discovery, however, will overcome these barriers and open the door to many potential applications.

High pressure necessary

Dias calls superconductivity at room temperature the" Holy Grail "of physics ." To have a high-temperature superconductor, you need stronger ones Bindings and light elements, "he says." Those are the two basic criteria. Hydrogen is the lightest material, and the hydrogen bond is one of the strongest. "The problem with this is that pure hydrogen only turns into a metallic state under extreme pressure. So the team looked for alternative materials that are rich in hydrogen and have the desired superconducting properties and which metallize at lower pressures.

Ignoring scientists, Trump touts dubious coronavirus 'breakthrough'

  Ignoring scientists, Trump touts dubious coronavirus 'breakthrough' On using convalescent plasma to treat COVID-19, Trump is over-promising -- again.Biden himself told voters, "This is a life-changing election. This will determine what America's going to look like for a long, long time. Character is on the ballot. Compassion is on the ballot. Decency. Science.

After years of work, a mixture of hydrogen, carbon and sulfur prevailed. The necessary pressure of 39 million psi is built up in a so-called diamond anvil cell. The carbon-containing sulfur hydride thus produced shows the ability to Superconductivity already at 14.5 degrees. "We live in a semiconductor society, and with this type of technology you can lead society into a superconducting society in which you never need things like batteries again," says the research work.

Practical Superconductivity would enable more efficient power grids, transport electricity without great loss of resistance. So you could - at least theoretically - lead electricity from solar energy directly from the Sahara to Europe. There are also numerous technical applications, from more powerful magnetic levitation trains to medical technology.

Michael Lonsdale dies aged 89

  Michael Lonsdale dies aged 89 The Moonraker villain, who played Hugo Drax in the 1979 film, passed away at his home in Paris, his agent Olivier Loiseau confirmed on Monday. Lonsdale played an industrialist planning to poison all of humanity before repopulating the planet from his space station opposite Bond icon Sir Roger Moore. © Provided by Daily Mail Sad news: James Bond star Michael Lonsdale has died aged 89 While Hugo Drax was his most notable role, Lonsdale was also known for his performance as detective Claude Lebel 1973's spy movie The Day of the Jackal.His performance in the film earned him a supporting actor BAFTA nomination.

Levitation effect

Magnetic levitation trains have another effect of superconductivity, the so-called Meißner-Ochsenfeld effect. An externally applied magnetic field cannot or hardly penetrates the superconducting material, it is displaced. In practice, this leads to the material "floating". Now the research team is working on changing the recipe so that less pressure is necessary. This is the only way to produce the material in larger quantities at a reasonable cost. They also hope to be able to push the temperature limit further up.

Source: University of Rochester , N ature

Also read:

Super wood - this board is stronger than steel

Magnetic cushions and Transrapid technology - this elevator goes up to the sky

On The Money: Sides tiptoe towards a COVID deal, but breakthrough appears distant | Expiring benefits raise stakes of stimulus talks | Stocks fade with eyes on Capitol

  On The Money: Sides tiptoe towards a COVID deal, but breakthrough appears distant | Expiring benefits raise stakes of stimulus talks | Stocks fade with eyes on Capitol Happy Monday and welcome back to On The Money. I'm Sylvan Lane, and here's your nightly guide to everything affecting your bills, bank account and bottom line.See something I missed? Let me know at slane@thehill.com or tweet me @SylvanLane. And if you like your newsletter, you can subscribe to it here: http://bit.ly/1NxxW2N.Write us with tips, suggestions and news: slane@thehill.com, njagoda@thehill.com and nelis@thehill.com. Follow us on Twitter: @SylvanLane, @NJagoda and @NivElis.

Out of the coal, in into vegetables - old mines should become farms

Learn more:

"Multi" elevator: Magnetic cushions and Transrapid technology - this elevator goes up to the sky

Underground farms: Out of the coal, into the vegetables - old mines should become farms

Renewable raw materials: Super wood - this board is stronger than steel

The show goes on at Madrid´s opera house despite pandemic .
MADRID (AP) — No one performing onstage in Spain’s Teatro Real opera house is masked, and that alone looks odd these days amid a pandemic. And that's even before the second act scene in Antonín Dvořák’s “Rusalka” — about a water nymph who falls in love with a mortal — in which cast members kiss and grope in a feigned, non-socially distanced orgy. While many of the world's major venues are shut down, including the Metropolitan Opera in New York, Covent Garden in London and La Scala in Milan, watching a performance at the Teatro Real in Madrid can almost make you forget about the coronavirus.

usr: 2
This is interesting!