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Unprecedented images of supersonic shock waves NASA has captured the first-ever photos showing the shock-waves of supersonic jets interacting in flight. 2019 NASA captures unprecedented images of supersonic shock waves with help of 'rock star' pilots NASA has captured unprecedented photos of the interaction of shock waves from two supersonic aircraft, part of its research into developing planes that can fly faster than sound without thunderous “sonic booms.” When an aircraft crosses that threshold — around 1,225 kph (760 mph) at sea level — it produces waves from the pressure it puts on the air around it, which merge to cause the ear-splitting sound. In an intricate manoeuvre by “rock star” pilots at NASA’s Armstrong Flight Research Centre in California, two supersonic T-38 jets flew just 30 feet (nine meters) apart below another plane waiting to photograph them with an advanced, high-speed camera, the agency said. The rendezvous — at an altitude of around 30,000 feet — yielded mesmerizing images of the shock waves emanating from both planes. With one jet flying just behind the other, “the shocks are going to be shaped differently,” said Neal Smith of Aerospace Computing Inc., an engineering firm that works with NASA, in a post on the agency’s website. “This data is really going to help us advance our understanding of how these shocks interact.” Sonic booms can be a major nuisance, capable of not just startling people on the ground but also causing damage — like shattered windows — and this has led to strong restrictions on supersonic flight over land in jurisdictions like the United States. The ability to capture such detailed images of shock waves will be “crucial” to NASA’s development of the X-59, the agency said, an experimental supersonic plane it hopes will be able to break the sound barrier with just a rumble instead of a sonic boom. A breakthrough like that could lead to the loosening of flight restrictions and the return of commercial supersonic planes for the first time since Concorde was retired in 2003. Some countries and cities banned the Franco-British airliner from their airspace because of its sonic booms.

Fitness Philosophy My grandmother started walking five miles a day when she was 56 - She's 97 now & we don't know where the hell she is. The only reason I would take up jogging is so I could hear heavy breathing again. I joined a health club last year, spent about 400 bucks. Haven't lost a pound. Apparently you have to show up. I have to exercise in the morning before my brain figures out what I'm doing. I don't exercise at all. If God meant us to touch our toes, he would have put them further up our body. I like long walks, especially when they are taken by people who annoy me. I have flabby thighs, but fortunately my stomach covers them. The advantage of exercising every day is that you die healthier. If you are going to try cross-country skiing, start with a small country. I don't jog. It makes the ice jump right out of my glass.

Little Johnny's at it again……. Little Johnny watched, fascinated, as his mother smoothed cold cream on her face. 'Why do you do that, mommy?' he asked. 'To make myself beautiful,' said his mother, who then began removing the cream with a tissue. 'What's the matter?' asked Little Johnny. 'Giving up?'

The First Portrait Photograph Ever Made Robert Cornelius’ Self-Portrait: The First Ever “Selfie” (1839) In 2013, the Oxford Dictionaries announced their word of the year to be “selfie”, which they define as “a photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website.” Although the rampant proliferation of the technique is quite recent, the “selfie” itself (if defined as being a photograph one takes of oneself) is far from being a strictly modern phenomenon. Indeed, the photographic self-portrait is surprisingly common in the very early days of photography exploration and invention, when it was often more convenient for the experimenting photographer to act as model as well. In fact, the picture considered by many to be the first photographic portrait ever taken was a “selfie”. The image in question was taken in 1839 by an amateur chemist and photography enthusiast from Philadelphia named Robert Cornelius. Setting up his camera at the back of the family store in Philadelphia, Cornelius took the image by removing the lens cap and then running into frame where he sat for a minute before covering up the lens again. On the back of the image he wrote “The first light Picture ever taken. 1839.”

Best excuses to back off a climb Wrong shoes. The sun was in my eyes. Forgot to trim my nails. Can't do that route without a rope nobody nearby will offer to loan you. I'd lead it, but my partner would have trouble following it. We were going to do it, but somebody was on it. My Land Cruiser is double parked. I'd do it, but this is my old rope and I don't want to take falls on it. I'd do it, but this is my new rope and I don't want to take falls on it. Weather's looking iffy. I just ate a big meal. I haven't eaten enough today. I just ate. These pants restrict my motion too much. This problem seems harder than last time. I think a hold must have broken off. It's too early. It's too late. Let's do something else to warm up first. Damn — I forgot to get the beta for that one section. Holds are getting too polished from all the climbers. I'm not used to (sandstone/granite/quartzite/gritstone/rhyolite/mud). You wanna lead?

What's an Australian kiss........The same thing as a French kiss, only down under

Despite the old saying: 'Don't take your troubles to bed'.........Many men still sleep with their wives!!

I got this new deodorant stick. The instructions said, "Remove cap and push up bottom.".......I can barely walk with it, but when I fart, I smell really nice ...

Locker Room Cell Phone Conversation…… MAN: "Hello" WOMAN: "Honey, it's me. Are you at the club?" MAN: "Yes" WOMAN: "I am at the mall now and found this beautiful leather coat. It's only $1,000. Is it OK if I buy it?" MAN: "Sure, go ahead if you like it that much." WOMAN: "I also stopped by the Mercedes dealership and saw the new 2004 models. I saw one I really liked." MAN: "How much?" WOMAN: "$60,000" MAN: "OK, but for that price I want it with all the options." WOMAN: "OK. I'll see you later! I love you!" MAN: "Bye, I love you too." The man hangs up. The other men in the locker room are looking at him in astonishment. Then he asks: "Anyone know who this phone belongs to?"

First Cape Canaveral Launch The First Rocket Launch from Cape Canaveral US (1950) A new chapter in space flight began in 1950 with the launch of the first rocket from Cape Canaveral, Florida: the Bumper V-2. Featured here, the Bumper V-2 was an ambitious two-stage rocket program that topped a V-2 missile base with a WAC Corporal rocket. The upper stage was able to reach then-record altitudes of almost 400 kilometres, about the height of the modern International Space Station. Launched under the direction of the General Electric Company, the Bumper V-2 was used primarily for testing rocket systems and for research on the upper atmosphere. Bumper V-2 rockets carried small payloads that allowed them to measure attributes including air temperature and cosmic ray impacts. Seven years later, the Soviet Union launched Sputnik I and Sputnik II, the first satellites into Earth orbit. In response in 1958, 60 years ago today, the USA created NASA.

Symptoms of being over 25 You leave clubs before the end to "beat the rush". You get more excited about having a roast on a Sunday than going clubbing. You stop dreaming of becoming a professional footballer and start dreaming of having a son who might instead. Before throwing the local paper away, you look through the property section. You prefer Later with Jools Holland to Top of the Pops. Before going out anywhere, you ask what the parking is like. Rather than throw a knackered pair of trainers out, you keep them because they'll be all right for the garden. You buy your first ever T-shirt without anything written on it. Instead of laughing at the innovations catalogue that falls out of the newspaper, you suddenly see both the benefit and money saving properties of a plastic winter cover for your garden bench and an electronic mole repellent for the lawn. You start to worry about your parents' health. You complain that ecstasy's "not as pure as it used to be coz you know that if you have some it will take about 48 hours to recover and anyway, you might look a bit of an idiot. Sure, you have more disposable income, but everything you want to buy costs between 200 and 500 quid. You don't get funny looks when you buy a Wallace and Gromit bubble bath, as the sales assistant assumes they are for your child. Pop music all starts to sound crap. You opt for Pizza Express over Pizza Hut because they don't have any pictures on the menus and anyway, they do a really nice half-bottle of house white. You become powerless to resist the lure of self-assembly furniture. You always have enough milk in. To compensate for the fact that you have little desire to go clubbing, you instead frequent really loud tapas restaurants and franchise pubs with wacky names in the mistaken belief that you have not turned into your parents. While flicking through the TV channels, you happen upon C4's Time Team with Tony Robinson. You get drawn in. The benefits of a pension scheme become clear. You go out of your way to pick up a colour chart from B & Q. You wish you had a shed. Radio 2 play more songs you know than Radio 1 Instead of tutting at old people who take ages to get off the bus, you tut at schoolchildren whose diction is poor. When sitting outside a pub you become envious of their hanging baskets. You make an effort to be in and out of the curry house by 11. You find yourself saying "Is it cold in here or is it just me?"

Quiet Round Of Golf A man staggers into an emergency room with a concussion, multiple bruises, two black eyes and a five-iron wrapped tightly around his throat. Naturally, the doctor asks him what happened. "Well, it was like this, said the man.” "I was having a quiet round of golf with my wife, when at a difficult hole; we both sliced our balls into a grassland of cows. We went to look for them, and while rooting around, I noticed one of the cows had something white at its rear end. I walked over and lifted its tail, and sure enough, there was a golf ball with my wife's monogram on it - stuck right in the middle of the cow's butt". "That's when I made my big mistake". "What did you do?" asks the doctor. "Well I lifted the cow's tail, point at it and yelled to my wife. Hey this looks like yours" "I don't remember much after that"

Blind cashier at Cabalas Shop A woman goes into Cabela's to buy a rod and reel for her grandson's birthday. She doesn't know which one to get, so she just grabs one and goes over to the counter. The clerk was standing behind the counter wearing dark shades. She says to him, "Excuse me, sir. Can you tell me anything about this rod and reel?" He says, ?"Ma'am, I'm completely blind; but if you'll drop it on the counter, I can tell you everything from the sound it makes." She doesn't believe him but drops it on the counter anyway...... He says, "That's a six-foot Shakespeare graphite rod with a Zebco 404 reel and 10-LB. Test line. It's a good all-around combination, and it's on sale this week for only $30.00." She says, "It's amazing that you can tell all that just by the sound of it dropping on the counter. I'll take it!" As she opens her purse, her credit card drops on the floor. "Oh, that sounds like a Master Card," he says. She bends down to pick it up and accidentally farts. At first she is really embarrassed, but then realizes......there is no way the blind clerk could tell it was her who tooted. Being blind, he wouldn't know that she was the only person around? The man rings up the sale and says, "That'll be $34.50 please." The woman is totally confused by this and asks, "Didn't you tell me the rod and reel were on sale for $30.00? How did you get $34.50?" He replies, "Yes, ma'am. The rod and reel are only $30.00, but the Duck Call is $4.50.

Making a baby…. The Smiths were unable to conceive children and decided to use a surrogate father to start their family. On the day the proxy father was to arrive, Mr. Smith kissed his wife goodbye and said, 'Well, I'm off now. The man should be here soon.' Half an hour later, just by chance, a door-to-door baby photographer happened to ring the doorbell, hoping to make a sale. 'Good morning, Ma'am', he said, 'I've come to....' 'Oh, no need to explain,' Mrs. Smith cut in, embarrassed, 'I've been expecting you.' 'Have you really?' said the photographer. 'Well, that's good. Did you know babies are my speciality?' 'Well that's what my husband and I had hoped. Please come in and have a seat! After a moment she asked, blushing, 'Well, where do we start?' 'Leave everything to me. I usually try two in the bathtub, one on the couch, and perhaps a couple on the bed. And sometimes the living room floor is fun. You can really spread out there.' 'Bathtub, living room floor? No wonder it didn't work out for Harry and me!' 'Well, Ma'am, none of us can guarantee a good one every time. But if we try several different positions, I'm sure you'll be pleased with the results.' 'My, that's a lot!’ gasped Mrs. Smith. 'Ma'am, in my line of work a man has to take his time. I'd love to be In and out in five minutes, but I'm sure you'd be disappointed with that.' 'Don't I know it,' said Mrs. Smith quietly. The photographer opened his briefcase and pulled out a Portfolio of his baby pictures. 'This was done on the top of a bus,' he said. 'Oh, my!' Mrs. Smith exclaimed, grasping at her throat. 'And these twins turned out exceptionally well - when you consider their mother was so difficult to work with.' 'She was difficult?' asked Mrs. Smith. 'Yes, I'm afraid so. I finally had to take her to the park to get the job done right. 'Yes', the photographer replied. 'And for more than three hours, too. The mother was constantly squealing and yelling - I could hardly concentrate, and when darkness approached, I had to rush my shots. Finally, when the squirrels began nibbling on my equipment, I just had to pack it all in.' Mrs. Smith leaned forward. 'Do you mean they actually chewed on your, uh...equipment?' 'It's true, Ma'am, yes. Well, if you're ready, I'll set-up my tripod and we can get to work right away.' 'Tripod?' 'Oh yes, Ma'am. I need to use a tripod to rest my Canon on. It's much too big to be held in the hand and it very long.' Mrs. Smith fainted

he World Wide Web is 30 years old Dial-up tone, clunky websites and AOL free trial CDs - it's clear that the earliest versions of the world wide web came with quirks and frustrations. Thirty years ago, Sir Tim Berners-Lee submitted his proposal for the world wide web. To celebrate its anniversary, tech firms, early web users and retired politicians are flooding #Web30 on Twitter with nostalgic posts remembering their first interactions with the world wide web. Google Doodle celebrates the thirtieth anniversary of the creation of the World Wide Web, first proposed on March 11th, 1989, by Tim Berners-Lee. Suppose all the information stored on computers everywhere were linked. Suppose I could program my computer to create a space in which everything could be linked to everything.’ Sir Tim Berners-Lee, inventor of the World Wide Web While today we use the words “internet” and “web” interchangeably, they actually refer to different things. The internet is the global network of computers that are able to communicate with one another and dates back to the US military’s ARPANET developed in the 60s. The web, meanwhile, is the public’s main way of accessing this network, and was proposed by Berners-Lee in the late 80s. The technology is complex, but Tim Berners-Lee’s genius was in creating a streamlined system that would allow people to easily navigate this network. The web is a complex series of URLs, linked by HTTP and formatted in HTML, but its abstract design makes it as simple to access as a series of interlinked webpages. The simplicity of this system was what allowed the general public (not just scientists and engineers) to make use of this vast, complex network. In 1989 the world’s largest physics laboratory, CERN, was a hive of ideas and information stored on multiple incompatible computers. Sir Tim Berners-Lee envisioned a unifying structure for linking information across different computers, and wrote a proposal in March 1989 called "Information Management: A Proposal". By 1991 this vision of universal connectivity had become the World Wide Web. Painfully slow dial-up modems First memories of the web: dial-up modems and that distorted jingle each time you had to manually log on. If you’d have shown me Wi-Fi back then it would have been akin to sorcery. I built my own PC specifically for making the most out of surfing the web, and it was all geared towards trying to get as close as possible to the dizzying heights of the theoretical 56 kbit/s download speed and having a computer that could capitalise on this. It never went much above 45 kbit/s, though. To give you some context, to download a 100GB film with that kit would have taken 165 days. Yes, almost half a year. Streaming anything was impossible, so everything was text-based. And the less text on a homepage, the faster it loaded -– which is why I recall clearly when Google launched its minimal homepage design in 1998 and the awe of those in the office who marvelled at its lack of clutter and its lightning load time. Far from the messy, hectic jumble of other established search engines, it was a breath of fresh air. Over the next half hour, I watched as it became the default homepage for the entire floor until all I could see was a sea of white screens with a text-entry box in the centre. You knew right then Google was going to dominate the web. Jeremy White

Some Time-Honoured Truths... Don't sweat the petty things, and don't pet the sweaty things. One tequila, two tequila, three tequila, floor. One nice thing about egotists: They don't talk about other people. To be intoxicated is to feel sophisticated but not be able to say it. Never underestimate the power of stupid people in large groups. The older you get, the better you realize you were. I doubt, therefore I might be. Age is a very high price to pay for maturity. Procrastination is the art of keeping up with yesterday. Women like silent men, they think they're listening. Men are from earth. Women are from earth. Deal with it. Give a man a fish and he will eat for a day. Teach him how to fish, and he will sit in a boat and drink beer all day. A fool and his money are soon partying. Before they invented drawing boards, what did they go back to? Do infants enjoy infancy as much as adults enjoy adultery. If all the world is a stage, where is the audience sitting? If one synchronized swimmer drowns, do the rest have to drown too? If the #2 pencil is the most popular, why is it still #2? If work is so terrific, how come they have to pay you to do it? If you're born again, do you have two bellybuttons? If you ate pasta and antipasta, would you still be hungry? If you try to fail, and succeed, which have you done? Why is it called tourist season if we can't shoot at them?

Google launches Android Q Beta 1 Google today launched Android Q Beta 1, available for download now at google.com/android/beta. The first beta includes a preview SDK for developers with system images for the Pixel, Pixel XL, Pixel 2, Pixel 2 XL, Pixel 3, Pixel 3 XL, and the official Android Emulator. This is the fourth year running that Google has released the first developer preview of the next Android version in March — Android N (later named Android Nougat), Android O (Android Oreo), and Android P (Android Pie). For the past two years, Google did not use the Android Beta Program, which lets you get early Android builds via over-their-air updates on select devices. That changes with Android Q — Google is making the first preview available as a beta, not just as a developer preview. That signals that it is ready for early adopters to try, in addition to developers. As before, this preview version will be referred to as Android Q until Google picks a name starting with that letter. In past years, Google would wait until the second developer preview before making it available on more phones, and that’s likely to stay the same. The first Android Q developer preview is, however, technically available on more phones Beta 1 features Device location: Giving users more control over when apps can get location, including when the app is not in use (in the background). Users will be able to give apps permission to see their location never, only when the app is in use (running), or all the time (when in the background). Scoped storage: Giving more control over access to shared files. Users will be able to control apps’ access to Photos, Videos, and the Audio collections via new runtime permissions. For Downloads, apps must use the system file picker, which allows the user to decide which Download files the app can access. Developers will also have to change how apps use shared areas on external storage. Background activity starts: Reduce interruptions like apps unexpectedly jumping into the foreground and taking over focus. Apps will be prevented from launching an Activity while in the background. Developers will still be able to get the user’s attention quickly — such as for incoming calls or alarms — with a high-priority notification a full-screen intent. User data IDs: Limiting access to non-resettable device identifiers, including device IMEI, serial number, and similar identifiers. Android Q will also randomize the device’s MAC address when connected to different Wi-Fi networks by default (optional in Android 9 Pie). Foldables and innovative new screens: Apps will be able to take better advantage of these and other large-screen devices. Changes to onResume and onPause support multi-resume and notify your app when it has focus. The resizeableActivity manifest attribute now helps manage how your app is displayed on foldable and large screens. Sharing shortcuts: Faster sharing to other apps. Sharing Shortcuts, which let users jump directly into another app to share content, are getting faster. Developers can publish share targets that launch a specific activity in their apps with content attached, shown to users in the share UI instantly because they are published in advanced. Because Sharing Shortcuts is similar to how App Shortcuts works, the ShortcutInfo API now integrates both and is supported in the new ShareTarget AndroidX library (early sample app source code).