Re: If I dont believe in you, do you exist?

Do you exist if I do not believe you exist-is the question. Of course one is not sure.An objective reality cannot exist without somebody perceiving it.If you believe it still exists independent of your perception,you may do so but that is only a belief and hence is subjective. It is therefore safe to presume that nothing exists without our perceiving that it exists. The question that arises is whether a reality has necessarily to exist if we believe it exists.By way of example ,I believe ghosts and gnomes exist and does that mean they exist as an objective reality ? No.Additional conditions apply .Verifiability of the evidence suggesting their existence should possibly be one of the conditions. Of course one would ask what we mean by verifiability.Suppose there is a mountain near the horizon and everybody's perception and everything else points to the possibility of its existing. Which means the sensory impressions of all the people with respect to the object tally in all respects. We may therefore conclude the mountain exists. The unanswered question is whether several assessments tallying with one other and based upon "physical verifiability" make the mountain an objective reality . Since we cannot separate our consciousness from what we perceive outside of ourselves the only way of verifying the existence of the objective reality is to cease to be the experiencer and become a part of the experienced. This is what the Hindus call brahma gyan(knowledge of Brahma)

How to make a black hole

Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.

  • There's more than one way to make a black hole, says NASA's Michelle Thaller. They're not always formed from dead stars. For example, there are teeny tiny black holes all around us, the result of high-energy cosmic rays slamming into our atmosphere with enough force to cram matter together so densely that no light can escape.
  • CERN is trying to create artificial black holes right now, but don't worry, it's not dangerous. Scientists there are attempting to smash two particles together with such intensity that it creates a black hole that would live for just a millionth of a second.
  • Thaller uses a brilliant analogy involving a rubber sheet, a marble, and an elephant to explain why different black holes have varying densities. Watch and learn!
  • Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.

Russian reporters discover 101 'tortured' whales jammed in offshore pens

Protected animals are feared to be headed for the black market.

Politics & Current Affairs
  • Russian news network discovers 101 black-market whales.
  • Orcas and belugas are seen crammed into tiny pens.
  • Marine parks continue to create a high-price demand for illegal captures.
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China’s artificial sun reaches fusion temperature: 100 million degrees

In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.

Credit: EAST Team
Surprising Science
  • The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
  • Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
  • Still, scientists have many other obstacles to pass before fusion technology becomes a viable energy source.
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