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The atoms within quasicrystals are arranged in repeating forms, but unlike ordinary crystals they have more complex symmetry. It turns out this makes them perfect for producing mazes

With a new surgical intervention and neuroprosthetic interface, researchers restored a natural walking gait in people with amputations below the knee. Seven patients were able to walk faster, avoid obstacles, and climb stairs more naturally than people with a traditional amputation.

With a new surgical intervention and neuroprosthetic interface, researchers restored a natural walking gait in people with amputations below the knee. Seven patients were able to walk faster, avoid obstacles, and climb stairs more naturally than people with a traditional amputation.

Computer scientists have invented a camera mechanism that improves how robots see and react to the world around them. Inspired by how the human eye works, their innovative camera system mimics the tiny involuntary movements used by the eye to maintain clear and stable vision over time.

Computer scientists have invented a camera mechanism that improves how robots see and react to the world around them. Inspired by how the human eye works, their innovative camera system mimics the tiny involuntary movements used by the eye to maintain clear and stable vision over time.

To advance soft robotics, skin-integrated electronics and biomedical devices, researchers have developed a 3D-printed material that is soft and stretchable -- traits needed for matching the properties of tissues and organs -- and that self-assembles. Their approach employs a process that eliminates many drawbacks of previous fabrication methods, such as less conductivity or device failure, the team said.

Astronomers have discovered the first millisecond pulsar in the stellar cluster Glimpse-CO1.

US company Source, which makes solar panels that produce drinking water from moisture in the air, plans to launch a canned water brand called Sky Wtr later this year

There’s a trigger warning on ZeFrank’s recent video: “True Facts is not appropriate for children, nor for adults who don’t act like children.” But in fact this 11+ minute video is perfectly appropriate for kids. (There’s a commercial from 3:15 to 4:22).

It’s about plants that disperse their seeds, spores, or pollen explosively, including liverworts, dogwoods, mosses, witch hazel, oats, and sundry others.

Not only do the explosions disperse the seeds (clearly an adaptive trait; you want your genes to be away from your plot, where they compete with you), but in some cases the explosion has evolved to give the dispersing seeds an orientation that makes them go further.  And some of the spores, as in horsetails, have little arms that curl with changes in humidity that allow them to “walk” along the ground! (Oat seeds can do the same thing, hopping with their “awns” and then twisting themselves into the ground.) As usual, the photography is amazing, so don’t miss this one. The extensive research is documented by a list of references at the end.

In this video ZeFrank doesn’t mention evolution or natural selection, but of course it’s implicit in these amazing and diverse adaptations for dispersal. I, for one, hardly knew anything about these features, and was delighted to see all these complicated results of natural selection, which of course is cleverer than you are.  Seeds that plant themselves by screwing themselves into the dirt!

h/t: Mary

A research team has bridged a knowledge gap in atomic-scale heat motion. This new understanding holds promise for enhancing materials to advance an emerging technology called solid-state cooling.

A research team has bridged a knowledge gap in atomic-scale heat motion. This new understanding holds promise for enhancing materials to advance an emerging technology called solid-state cooling.

The process that can convert pollution into benign by-products is called selective catalytic reduction, or SCR. Until now, it has been unclear how this reaction actually occurs, and contradictions have long existed between reaction models within the literature. Catalysis researchers used a technology called modulation excitation spectroscopy, or MES, to finally identify the correct pathway.

Researchers have come up with exciting and sophisticated new mapping technology enabling future generations to get involved in creating their own future built landscape. They say that planners are missing a real trick when it comes to encouraging and involving the public to help shape their own towns, cities and counties for the future. They also say that games platforms can be used to plan future cities and also help the public immerse themselves in these future worlds.

Researchers have come up with exciting and sophisticated new mapping technology enabling future generations to get involved in creating their own future built landscape. They say that planners are missing a real trick when it comes to encouraging and involving the public to help shape their own towns, cities and counties for the future. They also say that games platforms can be used to plan future cities and also help the public immerse themselves in these future worlds.

Researchers have developed nanorobots that kill cancer cells in mice. The robot's weapon is hidden in a nanostructure and is exposed only in the tumour microenvironment, sparing healthy cells.

Researchers have developed nanorobots that kill cancer cells in mice. The robot's weapon is hidden in a nanostructure and is exposed only in the tumour microenvironment, sparing healthy cells.

AI model finds the cancer clues at lightning speed. Researchers have developed an AI model that increases the potential for detecting cancer through sugar analyses. The AI model is faster and better at finding abnormalities than the current semi-manual method.

Melanin is a ubiquitous compound in nature, produced by many organisms. However, its potential as a biomass resource to produce value-added chemicals and materials remains relatively unexplored. In a recent study, researchers investigated the chemical decomposition of melanin derived from cuttlefish ink and showcased its application in the synthesis of biopolymer films and particles. Their efforts will hopefully pave the way to the adoption of melanin upcycling.

Wooden sticks found in an Australian cave appear to match the accounts of a 19th-century anthropologist, suggesting the GurnaiKurnai people practised the same ritual at the end of the last glacial period

This I didn’t expect, and it’s a decision by a 6-3 vote, with Jackson, Kagan, and Sotomayor dissenting. Trump is now apparently shielded from prosecution for official acts, but not private ones. That’s going to cause great confusion, but it’s also going to delay his trials, making it easier for him to win November’s election.

From the NYT; click the headlines to read (archived here, but the feed changes):

An excerpt as things unroll in real time:

The Supreme Court ruled on Monday that former President Donald J. Trump is entitled to some level of immunity from prosecution, a decision that will almost surely delay the trial of the case against him on charges of plotting to subvert the 2020 election past the coming election in November. The vote was 6 to 3, dividing along partisan lines.

Mr. Trump contended that he was entitled to absolute immunity from the charges, relying on a broad understanding of the separation of powers and a 1982 Supreme Court precedent that recognized such immunity in civil cases for actions taken by presidents within the “outer perimeter” of their official responsibilities. Lower courts rejected Mr. Trump’s claim, but the Supreme Court’s ruling may delay the case enough that Mr. Trump would be able to make it go away entirely if he prevails in November.

Here’s what to know:

• The ruling: The justices said that Mr. Trump is immune from prosecution for official acts taken during his presidency but that there was a crucial distinction between official and private conduct. The case returns to the lower court, which will decide whether the actions Mr. Trump took were in an official or private capacity.

• The charges: The former president faces three charges of conspiracy and one count of obstructing an official proceeding, all related to his efforts to cling to the presidency after his 2020 loss. He was indicted last August by the special counsel, Jack Smith, in one of two federal criminal cases against him; the other relates to the F.B.I. raid on his private club, Mar-a-Lago, in August 2022 that recovered missing government documents.

• The trial timing: The prospects for a trial in the 2020 election interference case before the election seem increasingly remote. If Mr. Trump prevails at the polls, he could order the Justice Department to drop the charges. The bottom-line effect of the court’s ruling appears to be that the trial judge in Washington, Tanya S. Chutkan, is going to have to hold an evidentiary hearing on many, if not most, of the allegations in the special counsel’s indictment of Mr. Trump. The fact-finding process the court has ordered could take a while not only to conduct, but also to prepare for.

• Lower courts ruled against Trump: Judge Chutkan of the Federal District Court in Washington denied Mr. Trump’s immunity request in December. “Whatever immunities a sitting president may enjoy, the United States has only one chief executive at a time, and that position does not confer a lifelong ‘get-out-of-jail-free’ pass,” she wrote. A unanimous three-judge panel of the U.S. Court of Appeals for the District of Columbia Circuit agreed in February.

Apparently the January 6 case will go back to an appellate court for further consideration, and that means that a lot of time will pass (way past the election) before this case is decided.

Click to read the ruling as a pdf that you can download:

We are well and truly screwed: the President can commit as many crimes as he wants so long as they are “official acts”, and he has nothing to lose by doing that. And if he gets elected in November, a prospect that seems increasingly likely, he could simply order the Justice Department to drop the whole case against him.

If you’re a lawyer or legal eagle, weigh in below.