Friday, June 23
Jupiterian Lightening
Scientists have recorded lightning on Jupiter in radio observations. Recently, however, a historic event occurred when the Juno space probe took the first-ever photograph of a Jupiterian lightning bolt.
A NASA freelancer accidentally discovered the lightning photo in the raw data collected by the spacecraft. The image was taken on December 30, 2020, when the probe flew close to the gas giant's north pole for the 31st time.
The lucky recipient of the photo is Kevin M. Gill. In 2022, he completed processing the data from the JunoCam. It is known that the picture was taken from an altitude of about 32,000 km.
In the near future, scientists will be able to get more photos of Jupiterian thunderstorms. This is because the spacecraft will regularly fly over the night side of the planet for several months.
Source: ScienceDaily
Thursday, June 22
Aboriginal Painted Rock
Hundreds of years ago, in a cramped cave, Indigenous people in Australia painted a pair of watercraft whose origins have puzzled archaeologists since the artworks' discovery about 50 years ago. Now, a new study may have solved the mystery: The paintings likely depict "fighting craft" from what is now Indonesia, hinting that there may have been "physical violence" between the Indigenous people and visitors from afar.
Archaeologists identified the boats as being warships from the Moluccas (also known as the Maluku Islands), an archipelago off the eastern coast of Indonesia that's located directly north of Australia, according to a study published May 2 in the journal Historical Archaeology.
"Just these two craft suddenly add another dimension to the sphere of interaction of northern Australia — that Australia is not just some sort of land that's on its own, in the middle of nowhere and is cut off for 65,000 years from everywhere else," study co-author Daryl Wesley, an archaeologist and senior lecturer at Flinders University, told ABC News Australia. READ MORE...
Life of an INTJ Scorpion
INTJs prefer to work alone, but when working in teams they tend to be helpful to the people. They are ambitious individuals who aim high and try to achieve their goals. They feel comfortable working in an environment without emotional influence. Further, they tend to search for new and innovative approaches to promote the organization’s growth. They don’t stick to traditional methods and want to welcome all possibilities before making any decisions. In a nutshell, INTJs excel in any organization because of their confidence, vision, decision-making, and logical approach.
One thing about a Scorpio man when it comes to love, he isn't in it for the pure fun of it. To the Scorpio male, love is as serious as it gets. Scorpio won't ever pretend he does if he doesn't feel love for you. Genuine feelings are the height of passion and integrity for Scorpio. He will drown himself in the throes of a passionate love affair and enjoy every second of both agonies and ecstasies of love.
- Take me out to dinner
- Take me out dancing
- Take me out to this movie
- Take me out to this party
Hydrogen Electric Vehicles
To comply with carbon emissions regulations, many automakers have pledged to phase out the production of gas and diesel vehicles in the near future. But there is something in their plans that is hard to ignore. While the pathway to achieving zero-emission vehicles offers two options - battery and hydrogen fuel-cell EVs - the latter has been massively sidelined. Only a handful of hydrogen fuel-cell electric vehicles (HFCEVs) have been produced so far.
In light of automakers' actions, it appears as if achieving zero emissions is synonymous with producing BEVs instead of exploring other available options. Not long ago, the world’s largest automaker, Toyota, was on the receiving end of criticism for being deliberately slow in shifting toward the production of all-electric vehicles.
Wednesday, June 21
Controlling Autonomous Robots
In the film "Top Gun: Maverick," Maverick, played by Tom Cruise, is charged with training young pilots to complete a seemingly impossible mission—to fly their jets deep into a rocky canyon, staying so low to the ground they cannot be detected by radar, then rapidly climb out of the canyon at an extreme angle, avoiding the rock walls.
A machine, on the other hand, would struggle to complete the same pulse-pounding task. To an autonomous aircraft, for instance, the most straightforward path toward the target is in conflict with what the machine needs to do to avoid colliding with the canyon walls or staying undetected.
In an experiment that would make Maverick proud, their technique effectively piloted a simulated jet aircraft through a narrow corridor without crashing into the ground. READ MORE...
Change of Location
We also have several areas where we have planted flowers that need weeding and other annual maintenance. Our 26' round pool requires a top cover for the winter that we hold down with landscaping bricks that weigh 10-12 pounds each. Taking them off is quite a chore each year, especially as the bending over gets harder from one year to the next.
So, we decided to downsize and found a house, 200 square feet larger but with no stairs and a yard that can be mowed and weed eaten in an hour. We purchased the house about two weeks ago and on Wednesday of this week, our new appliances and furniture arrive. I say new because we sold all of our old stuff. The movers come the next day (Thursday) and except for a few odds and ends, we are MOVED.
We want to put our old house up for sale as close to the end of June as possible. We are hoping that the improvements we made to it and the areas that we newly painted will attract a buyer quickly.
We had a glitch with Lowes in ordering our flooring so the soonest they they put down the floor is July 24. We are looking around for another installer and will meet with him this Thursday while the movers are here. Hopefully, he will be able to do the job in the next several days.
We have the money to stay where we are and have someone tend to the yard and open and close the pool but the sets of stairs that we have to constantly go up and down is only going to get worse with age. I had 5 disks fused together a year ago and have lost strength in my right leg when walking up stairs. My wife has numerous back issues as well including another hip that needs to be replaced.
Downsizing in one's 70s makes sense from a physical standpoint. It also FORCED us to sell, give away, or trash a lifetime of accumulation that we no longer needed. Memories that we had forgotten all about. We discarded bunch of clothes we no longer needed as well.
It will take us a couple of weeks to unpack, sort out, and arrange all our stuff but our pace will be much slower.
Our neighbors are much better than the ones we had so that is encouraging. No more loud traffic sounds on the road where we were, no more barking dog, and more silence as we move deeper into our community.
The house is about as good as the one we are leaving, built about the same time, with few repairs needed. We made some changes that we did not need to do but wanted to do to accommodate our tastes.
By August/September, it will be like we never lived anywhere else...
A New Phase of Matter
For Experimental Physicists, Quantum Frustration Leads to Fundamental Discovery
“Chiral bose-liquid state” is a new phase of matter, according to UMass Amherst professor.
Under everyday conditions, matter can be a solid, liquid, or gas. But once you venture beyond the everyday—into temperatures approaching absolute zero, things smaller than a fraction of an atom or which have extremely low states of energy—the world looks very different. “You find quantum states of matter way out on these fringes,” says Sedrakyan, “and they are much wilder than the three classical states we encounter in our everyday lives.”
Sedrakyan has spent years exploring these wild quantum states, and he is particularly interested in the possibility of what physicists call “band degeneracy,” “moat bands” or “kinetic frustration” in strongly interacting quantum matter. READ MORE...
Tuesday, June 20
Partial De-Dollarization is Possible
The world could soon see the dominance of the US dollar start to wane, amounting to a partial de-dollarization of the global economy, according to JPMorgan, but that doesn't mean it's at risk of being replaced by a competitor like the yuan.
In a recent note, strategists at the bank explained that even if China's economy surpasses that of the US, it is still unlikely that the hegemony of the greenback would take much of a hit, and history suggests that any shift would happen at a glacial pace.
"While the US surpassed Great Britain as the world's largest economy in the latter part of the 19th century, the US dollar is commonly perceived to have overtaken the British pound as the world's foremost reserve currency only by the end of WWII," JPMorgan strategists wrote.