Tag Archives: discoveries

Futurology ~ Black Hole, asteroid-hoppers, solar gatherer, lean-green-crete, spray-on antenna, mosquito trap, gender maths, appendix, mummie-peaking, Mayan reveal

Revved up CT scanners reveal more details of preserved mummies

Seyfert sucks up Earth-sized object — A team of physicists has reported an Earth-sized clump of matter flying into a black hole at nearly a third the speed of light. It’s a lucky observation: some scientists visualise smaller black holes as being like the black hole from the movie Interstellar – a massive, spinning, compact object surrounded by a disk of shredded gas and dust, looking much like an evil planet Saturn. Objects don’t fall directly into the black hole, but travel inward along these spinning clouds. But theoretical physicists predict that larger black holes might instead have “chaotic accretion”, meaning things can fall into them at any angle.
~ But where did the Earth-sized clump go after it went into the hole? 

Japanese robots hop onto asteroid — Two tiny hopping robots successfully landed on an asteroid called Ryugu, then sent back some wild postcards from their new home. The tiny rovers are part of the Japan Aerospace Exploration Agency’s Hayabusa2 asteroid sample-return mission. Engineers with the agency deployed the robots early Friday September 21st, but JAXA waited until September 22nd to confirm the operation was successful and both rovers made the landing safely.
~ ‘We come in pieces …’

Solar-gathering battery — The problem of energy storage has led to many creative solutions, like giant batteries. For a paper published in the journal Chem, scientists trying to improve the solar cells themselves developed an integrated battery that works in three different ways: it can work like a normal solar cell by converting sunlight to electricity immediately; it can store the solar energy; and it can simply be charged like a normal battery. It’s a combination of two existing technologies: solar cells that harvest light, and a so-called flow battery.
~ I’m ever ready for this. 

Spheres make concrete leaner and greener — Rice University scientists have developed micron-sized calcium silicate spheres that could lead to stronger and greener concrete, the world’s most-used synthetic material. The researchers formed the spheres in a solution around nanoscale seeds of a common detergent-like surfactant. The spheres can be prompted to self-assemble into solids that are stronger, harder, more elastic and more durable than ubiquitous Portland-style cement. The spheres are also suitable for bone-tissue engineering, insulation, ceramic and composite applications.
~ From that churning cement mixer to ‘please self assemble now …’

Spray-on antennas — In a study published in Science Advances, researchers in Drexel’s College of Engineering describe a method for spraying invisibly thin antennas, made from a type of two-dimensional, metallic material called MXene, that perform as well as those being used in mobile devices, wireless routers and portable transducers.
~ MXene it up, indeed. 

A better mosquito trap — A scientist in Australia has come up with an insecticide-free way to control a particularly pesky species of mosquito. The approach involves two things: deploying a decidedly low-tech mosquito trap called a GAT … and getting to know your neighbours.
~ Nice to know you, neighbour! Now, stop yapping and start trappin’. [But people are still working on the modified extinction possibilities too.)

Maths and science boys and girls — A study of school grades of more than 1.6 million students shows that girls and boys perform similarly in science, technology, engineering and math (STEM) subjects.
~ Why is anyone actually surprised at this? 

Don’t cut out that appendix! After more than a century of slicing tiny, inflamed organs from people’s guts, doctors have found that surgery may not be necessary after all – a simple course of antibiotics can be just as effective at treating appendicitis as going under the knife.
~ Phew!

Peaking into mummies — A revved-up version of traditional CT scanning shows it’s possible to acquire microscopic-scale images of ancient Egyptian mummies, revealing previously unseen features such as blood vessels and nerves.
~ Seriously? I could have told them they’d have blood vessels and nerves!

Airborne lasers reveal many more Mayan structures — Using an airborne laser mapping technique called ‘lidar’, an international team of archaeologists has uncovered an astounding number of previously undetected structures belonging to the ancient Maya civilisation — a discovery that’s changing what we know of this remarkable society.
~ The ancient Maya’s range extended from what is today southern Mexico, Guatemala, and Belize.


Futurology ~ Strange planet, asteroid close-up, denser SSD, shoe-lace-bot, cancer breakthrough, chilli mice, Tsunami graves

Is it a star or a planet? No, it’s a, um, Starnet … Various news outlets have been discussing a strange object in space, which may or may not be a planet. New measurements show that what was thought to be a brown dwarf – essentially a “failed star” that is too small to generate nuclear fusion, but too big to be a planet – might be a planet after all. But that’s far from the strangest part of this story.
Scientists recently took another look at four nearby brown dwarfs, as well as at this strange object, which is located only 20 light years from Earth. The new observation demonstrated that the weird object actually straddles the boundary between planet and brown dwarf. That’s cool, but even more perplexing is how all five of these objects ended up with their intense magnetic fields.
~ I think I will call it the Halo-Dwarf.

Space wall of hydrogen — The New Horizons spacecraft, now at a distance nearly 6.4 billion kms from Earth and already far beyond Pluto, has measured what appears to be a signature of the furthest reaches of the Sun’s energy — a wall of hydrogen. It nearly matches the same measurement made by the Voyager mission 30 years ago, and offers more information as to the furthest limits of our Sun’s reach.
~ The Mexicans are very clear they did not pay for it. 

Japan’s Hayabusa2 spacecraft came tantalisingly close to asteroid Ryugu — It has offered an unprecedented view of the asteroid’s boulder-strewn surface.
The third descent of the mission saw Hayabusa2 come to within 851m of the asteroid, making it the closest encounter to date.
~ Shame that surface is so boring, right? 

Densest SSD take on a new shape — The chip giant Intel first set out this form factor a year ago, based on the Enterprise & Datacenter Storage Form Factor (EDSFF) standard for server makers to cut cooling costs and offer a more efficient format than SSDs in the classic square 2.5 inch size. Intel describes the new ruler-shaped Intel SSD DC P4500, which is 12 inches by 1.5 inches, and a third of an inch thick, as the world’s densest SSD. Server makers can jam up to one petabyte (PB) – or a thousand terabytes (TB) – of data into 1U server racks by lining up 32 of these 32TB Intel rulers together.
~ I love SSDs, they’re so fast and robust compared to hard drives. 

With a budget of just $US600 — a mere pittance compared to what robots such as ATLAS cost to develop — students from the University of California’s Davis’ College of Engineering created a machine that’s capable of tying shoe laces all by itself.
~ This will be really useful for tying the laces of people who can no longer bend over, presumably. 

Cancer put to sleep in Australia — In a world first, Melbourne scientists have discovered a new type of anti-cancer drug that can put cancer cells into a permanent sleep, without the harmful side-effects caused by conventional cancer therapies.
The research reveals the first class of anti-cancer drugs that work by putting the cancer cell to ‘sleep’, arresting tumour growth and spread without damaging the cells’ DNA. The new class of drugs could provide an exciting alternative for people with cancer, and has already shown great promise in halting cancer progression in models of blood and liver cancers, as well as in delaying cancer relapse.
~ Basically, it stops the cancer cells dividing and replicating. 

Chili can keep rodents away from seeds they’d eat — New research suggests that capsaicin – the spicy element of chili peppers – can be a robust deterrent to seed-eating rodents. Ecologists interested in restoring ecosystems after disturbances such as wildfires conducted experiments with deer mice. They started with glass enclosures where on one side, the mice were offered regular old sunflower seeds, while on the other side were seeds that had been given a special, capsaicin-laced coating. The mice ate 86% fewer pepper-treated seeds than untreated ones. When they took the experiment outside to the Missoula Valley in Montana, the scientists saw the results play out. Seeds treated with capsaicin were far more likely to survive to become plants than ones left untreated.
~ But if they develop a taste for it the same way people can, all we do is vary their palettes. 

Prehistoric mass graves located along coastlines around the world may be linked to ancient tsunamis — Mass graves are common in the archaeological record. There’s the Viking-age Ridgeway Hill Burial Pit in the UK which contains 54 skeletons and 51 dismembered heads, or the Early Neolithic mass grave of Schöneck-Kilianstädten in Germany, a likely massacre that resulted in the deaths of at least 26.
In these and similar cases, archaeologists attribute the burials to warfare or pillaging, as evidenced by wounds such as blunt-force trauma, injuries caused by weapons, or decapitations. But in some cases, where the cause of death isn’t obvious, and where no written or oral history exists to explain the presence of a mass grave, archaeologists can only speculate as to the cause.
New research suggests scientists have overlooked a possible cause of some ambiguous mass graves located along oceanic coastlines: ancient tsunamis.
~ They’re going mohave to find diatoms to prove it (really).