Not fata but I've been reading news on Kepler-22b a little.
-600 light years away(about 3500 trillion miles away)
-Orbits it's star every 290 days
-about 2.5 times the size of earth
-average temp about 70 degrees F
-should have a large magnetic field(if it has a surface)
-would have no problem keeping an atmosphere
-gravity would be a problem for humans though (scientists figure at least twice as much as earth)
i for one welcome our elephant legged overlords
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Yeah, kind of expected a "we see something interesting, but nothing conclusive" announcement.
Many 3 sigma discoveries disappear in particle physics, although that this is a predicted result rather than just a signal does make it more promising.
__________________ Uncertainty is an uncomfortable position.
But certainty is an absurd one.
When you think of the scale involved, how freakin fast was that thing going? Any estimates?
Not exactly sure about this but I seem to remember as a comet gets close to the sun it's going extremely fast...think 80-100 thousand miles per hour. something like that.
Circumference of the sun is 4,379,000 km, it goes behind the sun at about 22:00 on the 15th and emerges at about 3:30 on the 16th, so that's 5.5 hours.
That's almost 400,000 km/h or 110 km/s.
The timing is hard to determine from the video, and the disc of the sun is actually smaller than the screen that blocks it in the video, but the comet would travel further too because it wouldn't be right at the surface.
Circumference of the sun is 4,379,000 km, it goes behind the sun at about 22:00 on the 15th and emerges at about 3:30 on the 16th, so that's 5.5 hours.
That's almost 400,000 km/h or 110 km/s.
The timing is hard to determine from the video, and the disc of the sun is actually smaller than the screen that blocks it in the video, but the comet would travel further too because it wouldn't be right at the surface.
Also, it is not touching the surface, which I am assuming you are using in your calculation, I believe it was 100,000 kms or so from the surface. I read on one website, it was give or take 1,000,000 miles per hour when it was ejected from orbit, but there was no data to back it up.
Sorry to be spoilsport, but this is just a bunch of ordinary cameras with a delay between the triggers. This is very old technology - similar to the way some of the effects in The Matrix were produced - that has been adapted to something that is cool to look at. While the videos this camera array can make are totally cool, the tech is a bit boring.
Sorry to be spoilsport, but this is just a bunch of ordinary cameras with a delay between the triggers. This is very old technology - similar to the way some of the effects in The Matrix were produced - that has been adapted to something that is cool to look at. While the videos this camera array can make are totally cool, the tech is a bit boring.
Sorry to be spoilsport, but this is just a bunch of ordinary cameras with a delay between the triggers. This is very old technology - similar to the way some of the effects in The Matrix were produced - that has been adapted to something that is cool to look at. While the videos this camera array can make are totally cool, the tech is a bit boring.
Sorry but you're completely wrong, we're talking about light here which travels just under 3 meters per hundred-millionth of a second in air. No array of cameras could capture that.
How can one take a photo of photons in motion at a trillion frames per second?
We use a pico-second accurate detector. We use a special imager called a streak tube that behaves like an oscilloscope with corresponding trigger and deflection of beams. A light pulse enters the instrument through a narrow slit along one direction. It is then deflected in the perpendicular direction so that photons that arrive first hit the detector at a different position compared to photons that arrive later. The resulting image forms a "streak" of light. Streak tubes are often used in chemistry or biology to observe milimeter sized objects but rarely for free space imaging.
Cardiff University researchers, who are part of a British-German team searching the depths of space to study gravitational waves, may have stumbled on one of the most important discoveries in physics, according to an American physicist.
Interesting! They are not a 100% sure, but it is an interesting phenomenon. Even science has a hard time describing why consciousness exists. One theory is that consciousness projects itself as everything that exists.
Now that would explain Near Death Experiences, metaphysical phenomenon, etc. and does make us wonder what the nature of our reality is like. After all, we are merely a speck in such a grand universe.
Sorry but you're completely wrong, we're talking about light here which travels just under 3 meters per hundred-millionth of a second in air. No array of cameras could capture that.
I'm not really planning on arguing on CP, but I will explain my case. Let me preface this my saying that I have an honors degree in electrical engineering and physics, so this is right up my alley. The array of cameras are triggered by a super accurate pulse generator - these are common in modern laser labs. The source light, which looks like a single beam of light in the video, is a strobe that flashes many times so they have a lot of chances. A mirror deflects this light into the camera array. In short, this video is essentially a stop motion animation. That is, several still images of the bottle are captured with the light at a different point in the bottle. This is different than a true video of the light moving because the same group of photons are not captured in subsequent pictures; an entirely new flash of light is seen in each picture.
Also, it is fundamentally impossible to capture a traditional video of light moving because information can not move faster than light.
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Astronomers have achieved a big milestone in the search for another Earth: the two smallest confirmed planets ever found orbiting another star… and they’re both about the size of Earth! Artist’s illustration of the Kepler-20 planets with Earth and Venus for size comparison.
The planets are called Kepler-20e and Kepler-20f, and as you can see by the illustration above they are very close to the same size as our home world: 20e is about 11,100 km (6900 miles) in diameter, and 20f about 13,200 km (8200 miles) across. For comparison, Earth has a diameter of 12,760 km (7930 miles). This makes them the smallest confirmed exoplanets seen orbiting another star! The previous record holder was Kepler-10b, which has a diameter about 40% bigger than Earth’s.
Astronomers have achieved a big milestone in the search for another Earth: the two smallest confirmed planets ever found orbiting another star… and they’re both about the size of Earth! Artist’s illustration of the Kepler-20 planets with Earth and Venus for size comparison.
The planets are called Kepler-20e and Kepler-20f, and as you can see by the illustration above they are very close to the same size as our home world: 20e is about 11,100 km (6900 miles) in diameter, and 20f about 13,200 km (8200 miles) across. For comparison, Earth has a diameter of 12,760 km (7930 miles). This makes them the smallest confirmed exoplanets seen orbiting another star! The previous record holder was Kepler-10b, which has a diameter about 40% bigger than Earth’s.
Kepler is finding new planets constantly it seems, very exciting.
I have an ongoing debate with some friends over whether or not it is ethical to send objects or interfere with planets we believe to harbor life.
My contention is that because of the dramatic distance between our planet and other prospective "earths," exploration is and will always be impossible. Even if you were to send a probe, it would be thousands of years getting there and hundreds of years for the data to be beamed back. Which IMO is a fruitless albeit still somewhat noble pursuit.
Sooo I think it would be interesting to send physical objects to planets we believe could be home to sentient life. Sort of a message in a bottle scenario. A device to create fire for example, or a hand driven crank that lights an incandescent bulb. The particular objects i'm not quite sure of.
This seems to always draw the ire of someone in the conversation. This person feels an intense fear of "screwing" with something we don't understand. My question is do you guys think that it's totally reckless to undertake a mission of that kind? and if not what would you like to send?
btw if i really like to wind up the person I'm talking with about this, I say we could send large amounts of highly radioactive material. So as to encourage mutation and accelerate evolution on planet x.
I have an ongoing debate with some friends over whether or not it is ethical to send objects or interfere with planets we believe to harbor life.
My contention is that because of the dramatic distance between our planet and other prospective "earths," exploration is and will always be impossible. Even if you were to send a probe, it would be thousands of years getting there and hundreds of years for the data to be beamed back. Which IMO is a fruitless albeit still somewhat noble pursuit.
Sooo I think it would be interesting to send physical objects to planets we believe could be home to sentient life. Sort of a message in a bottle scenario. A device to create fire for example, or a hand driven crank that lights an incandescent bulb. The particular objects i'm not quite sure of.
This seems to always draw the ire of someone in the conversation. This person feels an intense fear of "screwing" with something we don't understand. My question is do you guys think that it's totally reckless to undertake a mission of that kind? and if not what would you like to send?
btw if i really like to wind up the person I'm talking with about this, I say we could send large amounts of highly radioactive material. So as to encourage mutation and accelerate evolution on planet x.
The implication of 2001: A Space Odyssey, is that an advanced alien culture sent an object to Earth, that jump-started human (intelligence) evolution.
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