Science, Space and Technology News 2023
We and our partners use cookies to Store and/or access information on a device. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. An example of data being processed may be a unique identifier stored in a cookie. Some of our partners may process your data as a part of their legitimate business interest without asking for consent.
“If we want to tap these very hot geothermal sources, we will have to learn how to drill into rocks that are in this mixed-mode condition, where they are not purely brittle, but also flow a bit,” says Peč, who is an assistant professor in MIT’s Department of Earth, Atmospheric and Planetary Sciences . “But overall, this is fundamental science that can help us understand where the lithosphere is strongest.
“This transition state of partly flowing, partly fracturing, is really important, because that’s where we think the peak of the lithosphere’s strength is and where the largest earthquakes nucleate,” Peč says. “But we don’t have a good handle on this type of mixed-mode behavior.” All these defects will also generate their own sounds when they move under stress and therefore both actively sounding through the rock as well as listening to it should give them a great deal of information. They found that the idea should work with ultrasound waves, at megahertz frequencies.This kind of ultrasound method is analogous to what seismologists do in nature, but at much higher frequencies,” Peč explains.
They found that at the lower end of the pressure range, where rocks are brittle, the marble indeed formed sudden fractures in response, and the sound waves resembled large, low-frequency booms. At the highest pressures, where rocks are more ductile, the acoustic waves resembled a higher-pitched crackling. The team believes this crackling was produced by microscopic defects called dislocations that then spread and flow like an avalanche.
South Africa Latest News, South Africa Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Petition to Fire Pro-Hamas Yale Professor Crosses 40,000 SignaturesSource of breaking news and analysis, insightful commentary and original reporting, curated and written specifically for the new generation of independent and conservative thinkers.
Read more »
Effort to replace Ohio's political-mapmaking system with a citizen-led panel can gather signaturesBackers of a proposal to reform Ohio's troubled political map-making system got the go-ahead Thursday to begin signature-gathering.
Read more »
12 Craziest Combo Attacks from Sonic the Hedgehog's Current Series, RankedSonic the Hedgehog's current comic series from IDW Publishing has seen some pretty impressive combo moves. Here are some of the craziest.
Read more »
Sonic The Hedgehog 3 Won't Fix This Franchise Complaint If The Shadow Tease Is Anything To Go ByThe Shadow tease at the end of Sonic the Hedgehog 2 means that Sonic the Hedgehog 3 will continue the biggest problem with the franchise.
Read more »
Sonic Superstars review: nostalgic pit stop struggles to tune up the 2D greatsSonic Superstars struggles as a multiplayer experience, but there's nostalgic fun to be had in this 2.5D throwback.
Read more »
Sonic Frontiers Final Horizon Review - A Hard-Fought Battle Against The EndSonic Frontiers: Final Horizon is a free update with enough content and difficulty to be its own title, but lacks the polish to be as great as the original title.
Read more »