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What will happen after the Big Rip?

There are many predictions made by scientists about the fate of the universe. One of them is the "Big Rip". So the question is, what will happen after the "Big Rip"?

So here's what I think will happen, feel free to correct me if I'm wrong.

1. The universe is expanding and it has been known and proven. If it continues at this rate, every matter inside the universe will be ripped apart.

2. But when the universe reaches it's "elastic limit" and can go no further, it will collapse with great force back into the centre of the universe.

3. When this happens, everything in the universe will shrink back into the size of an electron(or maybe even smaller) with an "infinite" amount of density. This can soon turn into another "Big Bang".

4. And therefore the steps repeat itself when there is another Big Bang.

 

Example: Imagine a coil of spring. If you compress it very tightly, it will repel back at you with great force. If it is pulled very strongly, it will pull itself back to it's normal shape with great force.

I believe that the universe is like a spring, but the only thing is that it doesn't have any definite shape.

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  • Asked by l3irus
  • on 2010-12-14 00:55:30
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Last edited on: 2010-12-14 01:00:02

Categories: Our universe.

Tags: physics, Universe, bigbang, cycle, beginningoftheuniverse, endoftheuniverse, bigcrunch, bigrip.

 

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more calories shown on home-trainer display = more efficient cardiovascular training?

Despite of what I wrote about using water bottles for dumbells, I do have access to a nice little real fitness-room at the place where I work. There also is a cycle-trainer there and as I can't ride my bicycle in the snowy weather we have now, I am happy to have at least that. There are some anvantages too (though I prefer real cycling when I have the option) - it shows the pulse, calories, power in watt, speed, time, and more. And there are 15 levels.

I calculated my ideal training pulse withthe help of a formular and try to go 20 minutes at that pulse. If I do that at level 10 I get the best results in watts and calories. If I use, say, level 6, I have to go very fast to get my pulse up, and still the watts and calories are less than at level 10. Or I go even faster to get the same watts, and then my pulse gets higher and I won't do that for 20 minutes surely.

At level 14 or so I hardly can move the pedals at all but if I do, the pulse also gets high faster that the watts do.

So what is best for keeping my cardiovascular system fit? to train always at level 10 where I get the best result, or to use other levels too?

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  • Member status
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Categories: Human Body.

Tags: Calories, fitness, cycling, pulse.

 

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does the peleton in the tour de france behave like a liquid?

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  • Asked by mfdozier
  • on 2010-07-17 13:09:36
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Categories: Transport.

Tags: sport, cycling.

 

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Up hill; walk or cycle

Obviously on a flat road cycling is a more efficient form of transport than walking but when faced with a steep incline I would prefer to walk (despite being a competant cyclist), but surely the mechanisms which make cycling preferable on a shallow incline are still relevent. Am I misguided in my assuption that walking is more efficient on the steep? If not then at what incline does the swich over happen?

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  • Asked by sonano
  • on 2010-03-15 16:04:13
  • Member status
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Categories: Human Body.

Tags: humanbody, walking, Efficientenergyuse, cycle.

 

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An electric shock from a push bike

When I ride my bike underneath low slung power lines (large National Grid cables) nearby I get a shock from the handlebars. This only seems to happen if I'm moving.

I connected a digital voltmeter which recorded values up to and off the scale of its 600 volt limit (I have a short video of this). The other peculiar aspect (which I noticed on the video) was the the bike speedometer showed fluctuations from about 8 mph (around the true speed) to over 30. Any ideas about why these things should happen?

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  • Asked by roger47
  • on 2009-08-24 20:13:15
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Categories: Technology.

Tags: electricity, bike, shock, cycle, voltage, speedometer, Electic.

 

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