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Here's a picture of a highway sign in Missouri, posted because I was on the lookout as we passed through here for tornado damage. Remember that big tornado last December that dove through my old Kentucky homeland, wrecking Mayfield and Dawson Springs and a bunch of other places? (I mentioned that here.) The earliest version of that tornado started just southeast of Jonesboro, Arkansas, about 53 miles southwest of the spot on I-55 where I took this picture. That tornado crossed the highway right here. This is, in fact, about where it was when I heard about what was happening on social media and started watching the internet radars. I paid closer attention because I knew this highway interchange, and then I followed the storm as it hopped the Mississippi and made its run through places I know even better. Much of the internet chatter after the storm suggested the tornado ran in a constant line all the way into Breckinridge County, Kentucky, another 203 miles away. That would have made this the longest continuous tornado track in history, but the National Weather Service surveys taken a day or two later said the storm lifted for about 14 miles between Reelfoot Lake and the Tennessee-Kentucky line.
This leads me to a bit of a rant about weather science, focusing specifically on the Enhanced Fujita Scale we use to measure the intensity of tornadoes. This dominated the weather-related social media for a few days, and I developed opinions.
First, here's the background. Back in the 1970s, meteorological technology had no way to directly measure the intensity of the wind within a tornado, because weather radar can't see wind. So a scientist named Ted Fujita came up with a system of proxy measurement, where you could look at the damage the tornado caused and indirectly estimate the speed the wind would have to reach to do all that. This became the Fujita Scale, which divided tornados into five categories by the severity of the damage they caused. An F1 was a little tornado that just left broken tree limbs and maybe messed up some roof tiles. An F5 was a monster that wiped a home's concrete slab foundation clean. The scientists fiddled with the system a few times over the years, and in 2007 they adopted a modified version called the Enhanced Fujita Scale, which is still in use today. The main enhancement is the addition of a letter, so that what used to be an F1 is now an EF-1.
And so, along comes this storm running about 260 miles (with a little gap) from Jonesboro, Arkansas, to Falls of Rough, Kentucky. A lot of storm chasers and weather folks went looking around the places hit by this tornado and saw a bunch of concrete slabs wiped clean in Mayfield and Dawson Springs and, most especially, a little town called Bremen in Muhlenberg County, and all these guys said, "My God! That was an EF-5." But then, after a couple of days, the National Weather Service guys who actually measure all this came along behind them and burst their bubbles. "Nope," they said. "What you see here? This clean concrete slab where a judge's house used to be in Muhlenberg County? That's just an EF-4. The best guess we can make on wind speed is 196 miles per hour."
That strikes me as an awfully specific number for something they say has to be vague. But I digress.
Now, the National Weather Service wasn't saying the winds weren't up into EF-5 territory. What it was saying was that it didn't know how high the winds were. The problem is that by their scale and system of measurement, in order for a tornado to be classified as an EF-5, it has to have wrecked a house built to EF-5 standards. In this specific case, the house has to have been bolted into a concrete slab and braced in a certain way. But most homes in Kentucky don't sit on concrete slabs, and those that do aren't built with these bolts. Since none of the wrecked homes fit this criteria, this tornado can't be rated an EF-5. In fact, an EF-5 in Western Kentucky is impossible. No matter how severe a tornado is, it can't be an EF-5.
And the thing about this is that this statement is entirely, 100% correct. Under this system, no place where buildings aren't built to certain specific, rigid standards can ever experience an EF-5. It's simply impossible. This doesn't mean such places can't experience wind speeds that match what an EF-5 is supposed to be. It just means that the housing stock isn't good enough for you to see EF-5 damage.
The result of this, then, is that the Fujita Scale isn't so much a measure of tornado intensity as it is a measure of construction standards. This makes it a lot less useful as an analytical tool than I've always believed.
Never mind that technology with weather radar and satellites has advanced enough to give you other methods to indicate wind speed through more direct measurement, and that you could overlay that data with data collected afterward on the ground and get a much fuller picture of the tornado. The National Weather Service doesn't want to do any of that. Those tools aren't standardized enough, they say, and incorporating that data now would make it more difficult to compare to data collected 10 or 20 years ago. Which I think is a backward way of looking at the issue. But then, nobody asked me.
Of course, some people might be tempted to look at this as an example of how all climate science is wrong ... which must mean the global climate change is a hoax, and the ozone hole isn't real, and the Earth isn't really spherical, and the Moon Landing never happened, and there really isn't some fairy floating around who wants all your teeth. None of that is what I'm saying. There are plenty of valid and precise tools used by weather and climate scientists to explain very well what's going on in the world. What I'm saying is that the Enhanced Fujita Scale, as it exists now, isn't necessarily one of them. It measures the wrong things, and the scientists should rethink that.
Somehow this little graphic presentation got lost in Da Vinci's manuscript about human reflexes.
It's kind of understandable. At the time, he was being investigated for herasey, by the Holy Church.
And although nudity was allowed in art. Science was a totally different subject.
Especially involving animal minds and intentions.
Naughty kitty. You need spanking. Not male model....
🐈🐈🙀😽😻😼😹😸😺😿😿❤️💋🌹
This is the NASA Visualization Explorer—the coolest way to get stories about NASA's exploration of the Earth, sun, moon, planets and universe delivered right to your iPad.
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The Thinktank Science Museum at Millennium Point, a multi-use meeting complex on Curzon Street in the Eastside, Birmingham, West Midlands.
The Birmingham Collection of Science & Industry was started in the mid-19th century, initially consisting of collections of weapons from the gun trade and the Birmingham Proof House. The Birmingham Museum & Art Gallery opened in 1885, including science collections. In 1951 the Museum of Science and Industry opened at Elkington Silver Electroplating Works, Newhall Street. Over the following years, the museum acquired individual artefacts, as well as entire collections, that were related to local industry and the history of science and technology.
Birmingham City Council decided in 1995 to relocate the museum when it was given an opportunity by the Millennium Commission to construct a new building. At the time, the old building was falling into a state of disrepair, and many of the artefacts were no longer in working order. The former museum closed in 1997, and Thinktank opened on 29 September 2001 as part of the £114-million Millennium Point complex. It was funded by Birmingham City Council, supported by the Millennium Commission. The area adjacent to the building is designated Eastside City Park. While many objects were put on display at Thinktank, others were stored at the Birmingham Museum Collection Centre, and some were brought out of storage.
Although the previous science museum was free to enter, Thinktank charges an entrance fee. In 2005 the museum underwent a £2 million upgrade, including the installation of a planetarium. By 2007 it had received over 1 million visitors. In April 2012, Birmingham Museums Trust took over governance and management responsibility for Thinktank, along with eight other sites.
In March 2015, a new "Spitfire gallery" opened, relating the displayed aircraft to their production, locally. Among the new exhibits are a leather flying helmet previously belonging to Helen Kerly, one of only two British civilian women commended for flying during the Second World War.
The museum shares the Millennium Point building with Birmingham City University, and is situated in the Eastside district. It lies near Aston University and the Gun Quarter – which was for many years the centre of world's gun-manufacturing industry. Immediately opposite are The Woodman, a public house, and Curzon Street railway station - both listed buildings.
Montage Photoshop utilisant les images en Creative Commons :
Attribution Some rights reserved by El Bibliomata : www.flickr.com/photos/fdctsevilla/4513788503/sizes/z/in/s...
Attribution Some rights reserved by El Bibliomata : www.flickr.com/photos/fdctsevilla/4513849243/sizes/z/in/p...
Attribution Some rights reserved by chefranden : www.flickr.com/photos/chefranden/3182589327/sizes/z/in/ph...
Attribution Some rights reserved by El Bibliomata : www.flickr.com/photos/fdctsevilla/4052595366/sizes/z/
Attribution Some rights reserved by El Bibliomata : www.flickr.com/photos/fdctsevilla/4074152055/sizes/z/in/p...
Finally dug into my archive and found this photo I took when i detoured to Singapore en-route back home last winter break. This was taken at dawn.
Will keep the photos coming as often as I can.
Have a great weekend my Flickr friends. Cheers!
Front cover for Science magazine September 2017, Vol 357, Issue 6354.
You can view the original picture here:
Fun with slow shutter and fireworks. A personal favorite of mine.
Exposure: 4 sec (4)
Aperture: f/3.3
Focal Length: 6.3 mm
ISO Speed: 64
© All Rights Reserved
V roku 2016 sa Science Talks konali na bratislavskom výstavisku Incheba. Organizátori na ňom, okrem iného, ocenili aj víťazov súťaže www.misiamars.sk.
Imagine my surprise when I found this bag stuck to the wall. Not by any conventional method but instead, I am told, by harnessing the power of a rare phenomenon known as SCIENCE.
Assignment for dailyshoot.com for 01/11/11: Make a photograph today that features or uses a liquid as a subject.
This isn't about art today, kids. Oh no. This is SCIENCE. This is the exact moment that Silly String ® morphs from its liquid form to its silly form. This has NEVER BEEN DOCUMENTED BEFORE.
And confirms, as suspected, that Silly String ® is faster than light.
Image shot for www.battlebrew.co.za website
Strobist Info:
2 ProFoto Mono heads with stripboxes at the back camera left and right.
Elinchrom Quadra with beauty dish above camera.
Background was chroma blue cloth lit by the spill from the 2 ProFotos.
Replacement background was built in Photoshop.
Glasgow Science Centre is a visitor attraction located in the Clyde Waterfront Regeneration area on the south bank of the River Clyde in Glasgow, Scotland. Queen Elizabeth II opened Glasgow Science Centre on 5 June 2001. It is one of Britain's most popular places to visit. It is a purpose-built science centre composed of three principal buildings which are the Science Mall, Glasgow Tower and an IMAX cinema. The Scottish tourist board, VisitScotland, awarded Glasgow Science Centre a five star rating in the visitor attraction category. As well as its main location, Glasgow Science Centre also manages the visitor centre at Whitelee Wind Farm, which opened to the public in 2009.