Good news from Jezero Crater, the Martian rover Perseverance managed to complete its mission for the first time: Collect and cache core samples from rocksSpace enthusiasts will undoubtedly remember that Perseverance’s first core sampling attempt did not go as planned-the rock chosen by planetary scientists ended up being too soft, and the percussive core bit just turned the core sample into powder. The latest attempt went exactly as planned: the cylindrical core bit made a perfect cut, the core slipped into the sample tube nested in the core bit, and when it eccentric cam, the core broke cleanly in the sample tube. The operator was able to provide visible evidence that this time the core sample was retained using the Mastcam-Z instrument, which clearly showed the core in the sample tube. Ingeniously, they then performed a “knock ingest” operation, in which the core bit and sample tube vibrated briefly so that any dust particles left around the core sample and the sealing edge slip into the sample tube. The next step is to transfer the sample tube to the abdomen of the rover. After some basic analysis, it will be sealed.
Has any Android user overslept this week? If you do, you are not alone– Many users of the Google Clock app report that their preset alarm does not soundIt is unclear whether it was the actual problem caused by the update or some kind of malfunction, but obviously it did not affect everyone; my phone reminded me mercilessly when it appeared at 6:00 every morning last week. But it clearly tripped some users, so much so that some people reported that they lost their jobs because they were late for work. Don’t judge, but in my opinion, if your work is so sensitive to your being late, it might make sense to have some kind of backup alarm clock. We all seem to believe too much that our mobile phones will “work normally”, and when they do not work, we will be surprised and shocked.
There seem to be two kinds of people in the world-people who hate roller coasters and people who like roller coasters. I stand firmly in the latter camp and would be happy to try any roller coaster, no matter how extreme. Of course, there are some that I regretted later, but in general, the feeling of being on the verge of physical injury is very cool.However, crossing the edge is far less pleasant, because having Japan’s extreme roller coaster is learningThe Dodon-pa roller coaster at Fuji-Q Highland Amusement Park can travel at 112 miles (180 kilometers) per hour and has caused a lot of injuries in the past ten months, including fractures of the cervical and thoracic spine. The ride is currently closed for safety inspections; people have to wonder what they are doing to assess the problem area of the ride. Maybe they send crash test dummies to collect data during endless rides, which is what we want to see.
In the end, you might think that phone tapping is a thing of the past; in many ways, you are right.But there is still a lot to learn about how the POTS network is put together, and This phone switch identification guide It should be of great help to any phone geeks out there. Get ready to play old school here-it’s just a plain text file that describes how to detect the switch of the phone connection by listening to things like dial tones and ringtones. The good news is that it describes the reasons why switches sound like them, so you can get a lot of interesting technical insights about how switches work.