Science
Science
Why does Saturn have a ring?
Larger rings are usually only about 30 feet in diameter, but the Cassini-Huygens spacecraft found the exact shape of some of the rings, with particles accumulating in bumps and hills more than 3 km high. The rings are wide and thin. The largest of the rings is 282,000 miles (175,000 miles) from the earth. There are between 500 and 1,000 rings in total, about 240,000 miles wide (about a distance from Earth to the Moon) and about 330 feet in diameter.
By Anita Kharel4 years ago in FYI
Looking Through Hubble Space Telescope
When Hubble, or HST, was first introduced, the instrument could detect ultraviolet light in waves much shorter than those seen by the naked eye, as well as visible light in the waves seen in natural men. At Hubble, a near-infrared camera was added to the third wide-angle version of the camera installed in May 2009. All of this gives Hubble its infrared eye for an initial investment in a near-infrared camera and spectrometer. By photographing a special category of moving stars, Hubble has helped astronomers estimate the age and expansion of the universe.
By Anita Kharel4 years ago in FYI
Wireless
"It's a funny thing, this Marconi business, isn't it?" said Mr. Shaynor, coughing heavily. "Nothing seems to make any difference, by what they tell me--storms, hills, or anything; but if that's true we shall know before morning." "Of course it's true," I answered, stepping behind the counter. "Where's old Mr. Cashell?" "He's had to go to bed on account of his influenza. He said you'd very likely drop in." "Where's his nephew?" "Inside, getting the things ready. He told me that the last time they experimented they put the pole on the roof of one of the big hotels here, and the batteries electrified all the water-supply, and"--he giggled--"the ladies got shocks when they took their baths." "I never heard of that." "The hotel wouldn't exactly advertise it, would it? Just now, by what Mr. Cashell tells me, they're trying to signal from here to Poole, and they're using stronger batteries than ever. But, you see, he being the guvnor's nephew and all that (and it will be in the papers too), it doesn't matter how they electrify things in this house. Are you going to watch?" "Very much. I've never seen this game. Aren't you going to bed?" "We don't close till ten on Saturdays. There's a good deal of influenza in town, too, and there'll be a dozen prescriptions coming in before morning. I generally sleep in the chair here. It's warmer than jumping out of bed every time. Bitter cold, isn't it?" "Freezing hard. I'm sorry your cough's worse." "Thank you. I don't mind cold so much. It's this wind that fair cuts me to pieces." He coughed again hard and hackingly, as an old lady came in for ammoniated quinine. "We've just run out of it in bottles, madam," said Mr. Shaynor, returning to the professional tone, "but if you will wait two minutes, I'll make it up for you, madam." I had used the shop for some time, and my acquaintance with the proprietor had ripened into friendship. It was Mr. Cashell who revealed to me the purpose and power of Apothecaries' Hall what time a fellowchemist had made an error in a prescription of mine, had lied to cover his sloth, and when error and lie were brought home to him had written vain letters. "A disgrace to our profession," said the thin, mild-eyed man, hotly, after studying the evidence. "You couldn't do a better service to the profession than report him to Apothecaries' Hall." I did so, not knowing what djinns I should evoke; and the result was such an apology as one might make who had spent a night on the rack. I conceived great respect for Apothecaries' Hall, and esteem for Mr. Cashell, a zealous craftsman who magnified his calling. Until Mr. Shaynor came down from the North his assistants had by no means agreed with Mr. Cashell. "They forget," said he, "that, first and foremost, the compounder is a medicine-man. On him depends the physician's reputation. He holds it literally in the hollow of his hand, Sir." Mr. Shaynor's manners had not, perhaps, the polish of the grocery and Italian warehouse next door, but he knew and loved his dispensary work in every detail. For relaxation he seemed to go no farther afield than the romance of drugs--their discovery, preparation packing, and export--but it led him to the ends of the earth, and on this subject, and the Pharmaceutical Formulary, and Nicholas Culpepper, most confident of physicians, we met. Little by little I grew to know something of his beginnings and his hopes - -of his mother, who had been a school-teacher in one of the northern counties, and of his red-headed father, a small job-master at Kirby Moors, who died when he was a child; of the examinations he had passed and of their exceeding and increasing difficulty; of his dreams of a shop in London; of his hate for the price-cutting Co-operative stores; and, most interesting, of his mental attitude towards customers. "There's a way you get into," he told me, "of serving them carefully, and I hope, politely, without stopping your own thinking. I've been reading Christie's _New Commercial Plants_ all this autumn, and that needs keeping your mind on it, I can tell you. So long as it isn't a prescription, of course, I can carry as much as half a page of Christie in my head, and at the same time I could sell out all that window twice over, and not a penny wrong at the end. As to prescriptions, I think I could make up the general run of 'em in my sleep, almost." For reasons of my own, I was deeply interested in Marconi experiments at their outset in England; and it was of a piece with Mr. Cashell's unvarying thoughtfulness that, when his nephew the electrician appropriated the house for a long-range installation, he should, as I have said, invite me to see the result. The old lady went away with her medicine, and Mr. Shaynor and I stamped on the tiled floor behind the counter to keep ourselves warm. The shop, by the light of the many electrics, looked like a Paris-diamond mine, for Mr. Cashell believed in all the ritual of his craft. Three superb glass jars-- red, green, and blue--of the sort that led Rosamund to parting with her shoes--blazed in the broad plate-glass windows, and there was a confused smell of orris, Kodak films, vulcanite, tooth-powder, sachets, and almond- cream in the air. Mr. Shaynor fed the dispensary stove, and we sucked cayenne-pepper jujubes and menthol lozenges. The brutal east wind had cleared the streets, and the few passers-by were muffled to their puckered eyes. In the Italian warehouse next door some gay feathered birds and game, hung upon hooks, sagged to the wind across the left edge of our window-frame.
By Mintoo kumar Yadav4 years ago in FYI
The Science of Profanity. Top Story - February 2022.
I have never needed a swear jar nor had my mouth washed out with soap. For most of my life, if a swear word slipped out, it was an accident, and I would immediately cover my mouth in embarrassment. For some reason, profanity doesn’t sound right coming from me. It’s like when a dog talks or a three-year-old says pontificate — people stop and stare.
By Jill (Conquering Cognitions)4 years ago in FYI
Do You Remember When They Said It Would Strike The Atlantic? . Top Story - January 2022.
Asteroid 99942 Apophis is one of many NEO asteroids. The size of Apophis is threatening at more than 300 meters. And, the truth of the matter is, that in 2004 when it first appeared on radar the initial calculations were that there was a small but believable possibility that it would strike Earth in April of 2029, somewhere in the Atlantic Ocean.
By Jason Morton4 years ago in FYI
8 Major Problems Every Electronics Store Faces.
Electronics stores face unique challenges. There are only a few other industries that witness a similarly fast pace of changes. With dedicated automatic accounting and payment management software such as OnlineCheckWriter.com, you are sure to keep your electronics store competitive.
By Noah Williams4 years ago in FYI
What should I look for when buying a portable power station?
Portable power stations have in recent years become increasingly popular. They are generally small devices designed to power smaller gadgets and appliances. When purchasing a portable power station, pay attention to watt-hours provided. Should you choose, let’s say, a portable power station that has 200 watt-hours you can roughly estimate it will power a 1 watt device for approximately 200 hours. LiFePO4 portable power stations are probably today’s most efficient and durable power packs and are loaded with great features. They are reliable, simple to use and environmentally friendly and come in a range of wattage power to suit your specific requirements. Portable power stations generally range from 300-2000W and come in a variety of lightweight and practical designs.
By Christian Haley4 years ago in FYI
How IoT Helps in Real-time Remote Health Monitoring of Elderly Patients, Improving Quality of Life
Can technology help elderly citizens to live independently longer? The number of elderly citizens coming to care homes in response to the COVID-19 epidemic has exacerbated the social isolation and loneliness experienced by many elderly and vulnerable people, increasing their risk of serious health issues. This trend, combined with societal shifts such as lower intergenerational living, greater geographic mobility, and fewer connected communities, has put the elderly at risk of isolation and, as a result, danger.
By Jessi Ryan4 years ago in FYI
A theory on Working Memory
I have a theory about how the working memory truly works in the brain. I've been talking about it recently. I'm trying to write and rewrite my articles until I have a nice copy of the information that I feel adequately tackles the subject. This is just conjecture of mine so just take it as food for thought, but I have a good feeling it's pretty close to the answer. It's quite possible that they don't answer this question in courses on the brain because they assume it's common sense somehow, but I think it's worth noting regardless because there is a lot of information on the brain that makes use of abstractions such as the concept of the working memory, or the visuospatial sketchpad or the phonological loop to describe various phenomena in a way that's very removed from what I assume is the actual cause, but it's because it still works in such a way that it can describe many complex phenomena.
By Nicholas Powers4 years ago in FYI
