X Factor UK 2015

Jamie2k9

Completely forgot what did I miss for first hour?

The Talking Bread

that hug was rehearsed.............awkward

Pretzill

The Talking Bread wrote: »

christ that Niall Horan landed on his feet! did you know his parents still live in a little terraced hose in mullingar!

i think he comes across as a sound bucko

When you said terraced Hose - it reminded me of the Monty Python sketch - 'Used to get up in the morning an lick road clean...etc'

Summer wind

How bony is Cheryl's back.

Crimsonforce

Well that was 15 mins I can't get back

The Talking Bread

Jamie2k9 wrote: »

Completely forgot what did I miss for first hour?

oh it was AMAZING!

Melisandre121

"Welcome back from the break, performing next, it's ONE DIRECTION, AGAIN."

CFlat

I'd have more respect if they would just come out and say they're breaking up. Harry probably already has a team of songwriters working on his solo career.

Pretzill

This show is only going in one direction.

Mind you I'm only catching up and didn't watch yesterday's - my interest is flagging just right at the end.

Meauldsegosha

70 minutes into the show and the finalists have sang 1 solo song so far. Ridiculous.

coffeepls

Not that I'm influenced by the ads but I'm going to get M&S food and have panadol and go to the bank and and and

Mr.Crinklewood

Crimsonforce wrote: »

Well that was 15 mins I can't get back

Follow
Yes, Time Travel Is Possible; Here's How

490,27024

Adam Clark Estes
Filed to: TIME TRAVEL
11/05/14 1:25pm


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Time travel's been one of man's wildest fantasies for centuries. It's long been a popular trend in movies and fiction, inspiring everything from Charles Dickens' A Christmas Carol to H.G. Wells' The Time Machine to the Charlton Heston shrine that is The Planet of the Apes. And with the opening of Interstellar today—n0t to spoil anything—we're about to fantasize about it even more.

The most fantastic thing? It's probably possible.

What's almost impossible

Let's start with the bad news. We probably can't travel back in time and watch the Egyptians build the pyramids. In the last century scientists came up with a number of theories that suggested it is indeed plausible to take a leap into the future; going back in time, unfortunately, is much more complicated. But it's not necessarily impossible.

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Albert Einstein laid the groundwork for much of the theoretical science that governs most time travel research today. Of course, scientists like Galileo and Poincaré that came before him helped, but Einstein's theories of special and general relativity dramatically changed our understanding of time and space. And it's because of these well-tested theories that we believe time travel is possible.

One option for would be a wormhole, also known as an Einstein-Rosen bridge. Along with physicist Nathan Rosen, Einstein suggested the existence of wormholes in 1935, and although we've yet to discover one, many scientists have contributed their own theories about how wormholes might work. Stephen Hawking and Kip Thorne are probably the most well known. Thorne, a theoretical physicist at CalTech, even helped Christopher Nolan with the science behind Interstellar.

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So let's just assume that wormholes do exist. In the late 1980s, Thorne said that a wormhole could be made into a time machine. According to Einstein's theory of general relativity, a wormhole could act like a bridge though space-time by connecting two distant points with a shortcut. Certain types of wormholes, it's theorized, could allow for time travel in either direction, if we could accelerate one mouth of the wormhole to near-light speed and then reverse it back to its original position. Meanwhile, the other mouth would remain stationary. The result would be that the moving mouth would age less slowly than the stationary mouth thanks to the effect of time dilation—more on this in a second.

But there are several major caveats of traveling back in time with this method. Chief among them is the simple fact that we'd need a method for creating wormholes, and once created, the wormhole would only allow us to travel as far back as the point in time when it was created. So we'll definitely never be spectators to Great Pyramids' construction.

The other really serious caveat is that we'd need a way to move one of the mouths of the wormhole nearly the speed of light. In their seminal 1988 paper on wormholes, Thorne and his colleagues assumed that "advanced beings [would] produce this motion by pulling on the right mouth gravitationally or electronically." We can't do that right now, however.

What we can do is travel into the future—but only by a little bit.

What's almost certainly possible

In recent years, we've seen some aspects of Einstein's fanciful theories proven true. The latest and perhaps most exciting theory is the aforementioned effect called time dilation. Though we've based technology on the theory for decades, an experiment finally proved this year that time dilation is absolutely a real phenomenon. It's also a phenomenon that could allow us to travel into the future.

Time dilation basically refers to the idea that time passes more slowly for a moving clock than it does for a stationary clock. The force of gravity also affects the difference in elapsed time. The greater the gravity and the greater the velocity, the greater the difference in time. Black holes, like the one depicted in Interstellar, for instance,would produce a massive amount of time dilation, due to their extreme gravitational pull.



Thanks to the space program, we've actually been dealing with this effect for many years. This is why the clocks on the International Space Station tick just a little bit more slowly than clocks on Earth do. Since the space station is moving so fast and is affected by less gravity, time moves more quickly. It's also why no clock on Earth is perfectly accurate, since the effect of time dilation means that time moves more slowly closer to the planet's surface. Okay, maybe one is almost perfect.

A better example of time dilation at work involves GPS satellites. The GPS chip in your smartphone works because there are 24 satellites circling the globe at all times that triangulate your location based on how long it takes time-stamped information to travel to and from the device.

However, scientists learned when building the system that the atomic clocks on GPS satellites do indeed run a little bit fast, since they're moving 9,000 miles per hour in orbit. To be specific, they lose 8 microseconds a day. That's hardly perceivable, but it's enough to throw off the location data. And so GPS technology makes adjustments to the clocks on board to account for the relativistic effects. The equation used is kind of complicated.

The implications of all this are huge. What if you took this to the extreme? If you jumped in a spaceship that flew super fast, time would pass more quickly for people on Earth. You could do a lap around the galaxy and return to Earth in the future. This is basically what happens in Planet of the Apes. In effect, Charlton Heston's character is a time traveler.

What's definitely possible (but kind of silly)

The question remains, can we really take it to that extreme? And is it possible to go backwards through time, too?

Once again, we don't really know. Einstein's theories tend to rule out rewinding time, but they're still theories. It's possible some future discovery could prove them wrong. As for the wormhole approach, we won't really know exactly how that works until we try it, and at the moment, we don't really have a feasible method for building a wormhole in space.

Hence, one easy way to find out is simply to search for time travelers walking amongst us. No laboratory required! And that's exactly what several zany scientists have done. (Spoiler: They haven't found any.)

If you're really curious about time travel though, go see Interstellar. The science behind it is sound—if sometimes a bit fantastic—but the movie itself is very fantastic.

coffeepls

Go away!

wil

Jamie2k9 wrote: »

Completely forgot what did I miss for first hour?

Stevie Wonder sang in the Apple Xmas ad, then there were some ads for something using Mark Ronsons song, another Apple ad with Jamie Foxx, some perfume ads and probably another Apple ad.
Yes that's about it.

dubstarr

This is dragging.

Crimsonforce

Bahahhaa what the **** is that above? Is it doc and marty Mcfly?

dark crystal

Are they going to bring on the best Joke acts of The X Factor over the years?

Are they??!

CH3OH

This is extreme padding

followed by extreme cackling

coffeepls

dark crystal wrote: »

Are they going to bring on the best Joke acts of The X Factor over the years?

Are they??!

Wagner.... Oh please please please

Mr.Crinklewood

dark crystal wrote: »

Are they going to bring on the best Joke acts of The X Factor over the years?

Are they??!

You just missed them. They played two songs before the break

Melisandre121

That Will Ferrell thing was pretty pointless..

ibarelycare

Oh god..... I can't watch!!!!!

Crimsonforce

Hahahhahahhaahha

CH3OH

this is awful.......................

Lisha

Melisandre121 wrote: »

That Will Ferrell thing was pretty pointless..

But it was Will Ferrell.. !

dubstarr

My prayers have been answered.:D

R N B singing and i say that loosely Bob Dylan.
I really must have fell in to a parlalel universe.

First time watching all year, these two lads are in the final 2!? Glad I didn't bother.

Mr.Crinklewood

They need help from the backing singers. ...Quick! !

retro:electro

Wtf

coffeepls

Oh good grief this is like listening to two oul fellas singing in a bus shelter