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why does my name hve a w

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-Xander

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-Xander

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-Xander

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-Xander

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This new surgery can give the legally blind 20/20 vision 

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This new surgery can give the legally blind 20/20 vision 

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The CDC estimates that in 2010 alone, 2.5 million emergency room visits or deaths were associated with traumatic brain injury in the United States.

This type of injury can cause severe damage to a patient’s vision, and even lead to blindness. Now though, researchers have discovered that sight can be restored in people who’ve suffered from a traumatic brain injury.

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Viruses have evolved to be more deadly for men than women, study suggests

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Viruses have evolved to be more deadly for men than women, study suggests

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hypothesis can't explain one important detail: how the virus or bacterium can tell if it's infecting a man or a woman.
Alejandra Rojo

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For most of human history, people have been terrified by lightning. Frightening bolts from above, lightning was a tool of the gods to smite mortals for their hubris (or their unfortunate penchant for seeking shelter from storms under trees).

The discovery and implementation of Benjamin Franklin's lightning rod tamed this once formidable, divine weapon. Nonetheless, lightning's strength still lingers in our imagination. Hollywood considers it powerful enough to allow strangely designed cars from the early 1980s to break the space-time continuum.

In the comic book world, it's an ingredient in the formula for developing superpowers. It has also been given the power to return life to the dead, though not always with the intended effect.

Just how much energy actually is in a lightning bolt? It may seem like this question should have been definitively answered before, but it turns out it's difficult to answer quantitatively.

In my research, we tackled this issue in a new way: We deduced how big a bolt of lightning was based on the size of rocks formed by lightning.
Rough estimates
Lightning is obviously powerful: one need only look at a tree that it's splintered down the centre for proof. Lightning generates temperatures hotter than the surface of the sun, in excess of 20,000 degrees Celsius, a temperature that is otherwise unrelateable to the human experience.

This temperature measurement provides one way to estimate the energy of lightning. It takes a certain amount of energy to heat air to a high temperature.

By measuring the length of a lightning strike, multiplying it by the energy per length required to heat up the air to tens of thousands of degrees, we can calculate lightning's energy.

Alternatively, we can approach the measurement of lightning energy by considering the voltage of a strike.

A volt is a measurement of the amount of energy released as each pack of electrons flows from one side of an object to another - for instance, a battery.

When lightning strikes, we can determine the voltage it induces on nearby powerlines; measurements range from hundreds of thousands to millions of volts.

From Ohm's law, we can calculate the power of lightning by multiplying this by the number of electrons that move during the strike, a value known as the current. If we know the duration of this strike, we can then calculate the energy.

These methods have a large range of errors: not calculating the length of the lightning strike correctly, or getting the amount of gas heated per length wrong, or the temperature, or voltage, or number of electrons - all give pretty large errors for these calculations.

Could there be another route to calculating lightning energy that might pare down some of these errors? Florida's unique geology provided an interesting route to answering this question.
Fossilised lightning
Florida tends to be a fairly boring state for a rock enthusiast. There's sand, and there's limestone. Not much else, and all of it is young, geologically speaking.

Sometimes the sand is on top of the limestone, and sometimes it's on the side. Sometimes the sand was deposited 15 million years ago, sometimes 5 million years ago. There's a lot of sand.

Florida's weather is a bit more interesting; it's actually the US state most often struck by lightning.

A lot of times this lightning strikes the sand that covers the state. When it does so, it creates a new type of rock, called a fulgurite - a hollow tube formed as the lightning travels through the sand, vaporising it and melting its outer edges.

When the sand cools down, which happens quickly, the hollow tube is frozen in glass, recording the path the lightning travelled. By definition, a fulgurite is a metamorphic rock, changed by heat and pressure, from sand to something new.

Fulgurites are generally rare, unless you know where to look. Central peninsular Florida hosts several sand mines that supply the raw material for roads and cement, golf courses and playgrounds.

At one site, we collected several hundred fulgurites; more than 250 lay in the field, with many more found in spoil piles, filtered out of the sand prior to its being loaded onto trucks.

These sites are not really any different than any place else in Florida - they aren't some sort of lightning magnet - but the geologic setting was just right for keeping them around for a long time.

These sand mines probably have about one million year's worth of fulgurites buried inside of them. They're easy to find - since glass isn't something you want in commercial sand, the mine filters them out.

The fulgurites range in thickness from about the size of a baby's little finger to about the size of man's arm in thickness.

The thicker ones had to be formed by much more energetic lightning bolts: a thicker fulgurite means more sand had to be vaporised. Most fulgurites we recovered were short fragments, though the longest ones found were a yard or two long.
Calculating from the fulgurites
It takes a specific amount of energy to vaporise sand into gas. First the sand has to be heated to around 1700°C, about the temperature of molten lava.

At this temperature, the sand melts. The molten sand then has to heat to just shy of 3000°C, when it vaporises. It takes about 15 megajoules of energy to heat and vaporise a kilogram of sand.

That's about the amount of energy the average U.S. household consumes in six hours, or the kinetic energy an average car would have if it were going 300 miles per hour.

After measuring our fulgurites, we determined that on average, the energy required to form these rocks was at least about one megajoule per meter of fulgurite formed. We calculated the energy per meter since, again in most cases, the fulgurites we had collected were broken.

So based on our calculations, how close does Hollywood come, with estimates like in Back to the Future of 1.21 gigawatts of power in lightning?

Power is energy per time, and our measurements of fulgurites suggest that megajoules of energy make rock in thousandths to millionths of seconds. So a gigawatt is actually on the low side - lightning power may be a thousand times that, reaching into the terawatts, though the average is probably tens of gigawatts.

That's enough energy to power about a billion houses, albeit only for a few millionths of a second. Unfortunately, given its sporadic and unpredictable nature, no power grid will ever be able to harness lightning effectively.

But with that much power, perhaps breaking the space-time continuum in a souped-up Delorean is not so unfeasible after all....
An oddity in the pattern
When we looked at these fulgurites in depth, something odd came out of the data. Our energy measurements followed something called a 'lognormal' trend.

Rather than following the bell curve we often see in the distribution of natural phenomena - like, for instance, the heights of American men - the energy curve was less equally balanced. For heights, the same number of men are two inches above average as are two inches below.

But for lightning, the large lightning strikes were much larger than the average, while the smaller strikes were not so much smaller than the average. Strikes that were twice the average were as frequent as those that were half the average.

Now why might this be at all interesting or useful? Measuring the energy in lightning is a way of measuring potential damage: A lightning strike can vaporise rock, so what might it do to wood or electronics?

Our measurements show that the biggest lightning strikes are multiples of the average lightning strikes: A big one might be 20 times as large as the average.

That's a lot for a lightning protection system to handle. The peak energy calculated from our rock-based method may give an idea as to the maximum damage we may expect, and may eventually allow for better preparation against the worst-case scenario.
Matthew Pasek, Associate Professor of Geosciences, University of South Florida This article was originally published by The Conversation. Read the original article.

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There's Way More Energy in a Bolt of Lightning Than We Thought

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For most of human history, people have been terrified by lightning. Frightening bolts from above, lightning was a tool of the gods to smite mortals for their hubris (or their unfortunate penchant for seeking shelter from storms under trees). The discovery and implementation of Benjamin Franklin's lightning rod tamed this once formidable, divine weapon.

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https://www.youtube.com/watch?v=awcGtY5N7NY

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scientist had discovered the comet 22 months before it passed mars and scientists are worried

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Researchers have found a way to give people that are blind 20/20 eye vision

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Pathogens have evolved to keep them alive 

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Pathogens have evolved to keep them alive 

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Monkeys would sound like dying old men if they could talk

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the best things in science
https://www.youtube.com/watch?v=Gzewqj0yjoQ

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Florida is the state most often struck by lighting

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pets are basically therapy for those in need, I mean who wouldn't want a big ball of fur to pet and or to see doing hilarious things.

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https://www.youtube.com/watch?v=F7g-K0bvmOs

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MEN ARE MORE LIKELY TO GET TUBERCULOSIS THAN WOMEN BY 1.5 CHANCE HIGHER
-Xander

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https://www.youtube.com/watch?v=F7g-K0bvmOs

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Humans might have evolved to identity faces like chimps recognise butts

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Viruses have evolved to be more deadly for men than women, study suggests

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A spherical shaped cloud over over sky in japan

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Bizarre pictures coming out of Japan last week show what appears to be an oddly spherical cloud hovering over the city of Fujisawa, just south of Tokyo.

According to reports from the photographer, the cloud started to lose its shape as soon as it was photographed, and then rapidly faded into the sky as if it never existed.

"When I looked out of the car window I saw a round ball-shaped cloud. I gazed at the cloud for a while then I rushed to take the photo," Twitter user @pmxpvrtmx (Poppy) told local Japanese news outlet, Rocket News 24.

"When I saw the cloud it was an even more spherical shape, so I regret not taking the photo more quickly."

While the pictures shot at Shonandai station on Sunday afternoon have not been independently verified, this is not the first time a fluffy cloud ball has been spotted in recent years.

The images below, captured by Twitter user @NicoSpqy9ba9 (Nico) in 2015, show a similar phenomenon elsewhere in Japan.

16:00頃の郡山市安積上空の怪しい球体の雲
気味が悪い( ノД`)#イマソラ pic.twitter.com/LQmoVNbxHA
- nico (@NicoSpqy9ba9) November 21, 2015

So what is that thing?

Some have suggested that the spherical cloud of Fujisawa is actually a roll cloud - a rare type of low, horizontal cloud formation that usually appears as a result of cold fronts, and is typically associated with thunderstorms.

As you can see in this footage of roll cloud, they are incredibly cool in their own right:

But roll clouds are distinctly cylindrical and never round, so our cloud ball must be something else.

Another Fujisawa local claims to have photographed the sphere, and as you can see, it doesn't look nearly so round from another perspective:

As atmospheric scientist Todd Lane from the University in Melbourne, Australia says, this might be the best clue we have in figuring out what this cloud could actually be.

And the answer is... it's probably nothing.

"While I can't verify the origin of this image, or whether it was even of the same cloud, it appears that the cloud only appeared spherical from one direction," Lane told ScienceAlert.

"That is, the photographer was lucky to be in the right place to capture an interesting image of what is likely an uninteresting cloud. It looks to me to be some form of cumulus fractus cloud."

For those of you who aren't up with their cloud types, cumulus fractus clouds are low-hanging, fragmentary clouds that are usually small bits that have been cleaved off the edges of larger clouds by strong winds.

That means they often look stretched or shredded, like the second perspective of the alternative perspective above.

If that's kind of a let-down, there's always the more 'creative' explanation that the spherical cloud was first spotted in north Wales four days earlier, and somehow made its way to Japan..? (It didn't).

This entirely unrelated 'fog dome' was photographed in Tremeirchion, north Wales, according to the BBC, and while it might look as nicely spherical as the Japanese cloud, they're entirely different phenomena.

"This is a very unusual phenomenon, but the most likely explanation is that the 'fog dome' has been caused by a source of heat close to the ground, possibly an agricultural building or a relatively warm pool of water," UK Met Office and BBC Weather Centre Forecaster John West told the BBC.

"As the fog has formed in the valley, this heat source has forced the fog to lift away from the ground into a dome as warmer air rises; like a hot air balloon."

The moral of the story? Never leave home without your phone, because nature is still surprising us with its weirdness.

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This Strange 'Spherical' Cloud Appeared in The Sky Over Japan

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Bizarre pictures coming out of Japan last week show what appears to be an oddly spherical cloud hovering over the city of Fujisawa, just south of Tokyo. According to reports from the photographer, the cloud started to lose its shape as soon as it was photographed, and then rapidly faded into the sky as if it never existed.

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Will Earth still exist in 5 billion years?

This is Scary!

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Dying Star Offers Glimpse of Earth’s Doomsday in 5B Years

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Dying Star Offers Glimpse of Earth's Doomsday in 5B Years L2 Puppis is a dying star that once resembled our sun and it is showing us the stellar inferno that lies in store for our planet. Five billion years from now, the sun will have grown into a red giant star, more than a hundred times larger than its current size,.

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Viruses have evolved to be more deadly for men than women,study suggests

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designScientists have created a manmade  diamond which is related to lonsdaleite. The man made diamond is said to be harder than traditional diamonds which is just compressed coal. The price of the manmade diamond is also significantly cheaper than a real diamond. Another benifit you can say that comes with the man made diamond is a nicer, more clearer object in general.

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Hey bro

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hey bro

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These monster waves are more common in the North Atlantic due to wind circulation patterns and atmospheric pressure in the northern hemisphere winter

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These monster waves are more common in the North Atlantic due to wind circulation patterns and atmospheric pressure in the northern hemisphere winter

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Chris Gonzalez

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Chris Gonzalez

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Chris