This week’s awesome tech stories on the web (until April 30)

COMPUTING

This two-inch diamond disc could hold a staggering billion worth of Blu-Ray data
Andre Liszewski | Gizmodo
“Using quantum memory techniques, it is estimated that a two-inch diamond wafer will have sufficient data density to store the equivalent of one billion Blu-Ray discs of data, or approximately 25 exabytes. It’s amazing and it could theoretically solve the world’s data storage needs, but despite the fact that Adamant Namiki Precision Jewelry Co. plans to bring this new manufacturing technique to market as early as next year, it will still take some time before you can order a new smartphone with 25 exabytes of data on board.

ROBOTICS

An incredibly powerful robot just broke a world record by jumping more than 100 feet in the air
Andre Liszewski | Gizmodo
“It is believed that the jumping performance of the robot has reached the maximum possible performance of the materials used. When the tension in the arcs is released, the robot accelerates from 0 to 60 mph in just nine milliseconds, exerting an acceleration force of 315g (most humans can’t sustain more than 9g) and jumping to a height nearly 100 feet.

NANOTECHNOLOGY

The world’s smallest gears measure just a few nanometers to power molecular machines
Michael Irving | New Atlas
“Molecular machines and nanorobots could be extremely useful in the decades to come, helping to build electronic components, transport drugs through the body, or manipulate individual cells or molecules. To this end, scientists have developed nanoscale versions of many machine parts, such as motors, pistons, pumps, keys and propellers. Now the FAU team has added another essential machine part to the list: sprockets.

TECHNOLOGY

Why Twitter is more powerful than the printing press
Jessica E. Lessin | information
“…those who reject [Elon] Musk’s takeover of Twitter as a modern example of a wealthy tycoon buying up printing presses or TV stations falls into a dangerous trap. They forget that the Internet is unlike any communication technology that has come before it. they underestimate the power of technology to evolve and control public conversation. »

WIDGETS

MIT develops a speaker that’s thinner than a sheet music
Haje Jan Kamps | Tech Crunch
“This thin-film speaker produces sound with minimal distortion while using a fraction of the energy required by a traditional speaker. The hand-sized speaker the team made demonstration, which weighs about a penny, can generate high-quality sound, regardless of the surface on which the film is stuck.

SPACE

Could the key ingredients of life have come from outer space? Scientists say yes
Will Dunham | Reuters
“A new examination of meteorites that have landed in the United States, Canada and Australia reinforces the idea that such objects may have delivered to the Earth early in its history chemical ingredients vital for the advent of life. Scientists had previously detected on these meteorites three of the five chemical components necessary for the formation of DNA, the molecule which carries the genetic instructions in living organisms, and RNA, the molecule crucial to control the action of genes The researchers said on Tuesday they had now identified the latter two after refining the way they analyze meteorites.

ARTIFICIAL INTELLIGENCE

Emerging Types of Language Models and Their Importance
Kyle Wiggers | Tech Crunch
“Several types emerge as dominant, including large general-purpose models like OpenAI’s GPT-3 and models fine-tuned for particular tasks (consider answering questions from the IT office). … There are major differences between these different approaches. in terms of strengths, gaps, and requirements. Here’s how they compare and where you can expect to see them deployed over the next year or two.

AUGMENTED REALITY

Snap CEO Evan Spiegel thinks the Metaverse is “ambiguous and hypothetical”
Richard Lawler and Alex Heath | The edge
“You just have to ask a room of people how to define it, and everyone’s definition is totally different,” [Spiegel said]. [He] also said The edge Alex Heath that companies doing metaverse presentations are “really talking about something that doesn’t exist yet,” as opposed to augmented reality, where “there are 250 million people interacting with augmented reality every day in just Snapchat app”. These AR interactions include everything from the goofy selfie effects Snap made popular years ago to more advanced shopping experiences.

Image Credit: MARIOLA GROBELSKA / Unsplash

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