Cause Definition and 566 Threads

There is this house down the street which has one of those new, white plastic vinyl fences around the front yard. This particular fence is constructed in such a way as the vertical members are the width of the spacing between members(about 2 inches or so) More importantly, the top of the fence...

Because dark energy and baryonic matter have mass densities of the same order - about 10^ - 27 kg / m^3, their total mass in the universe is similar. This would be the case if dark energy caused the inertia of baryonic matter,wouldn't it? (analagous to Mach saying that the distant stars...

My question concerns gravitational time dilation and time time dilation due to motion. If an outside observer views a person falling into a black hole to stand still when the person falling into the event horizon due to time standing still at the horizon, then why don't particle physicists view...

After going up in the mountains where i live i started getting annoyed at how washboard the roads were. Logging trucks go up this road alot. Is the design of the rear differential to blame for washboard roads? Seems to me to be the case since the bumps are evenly spaced. Cheers :smile:

http://www.dhmo.org/ It's really frightening what this dihydrogen monoxide can do. I've heard that without it, none of the current viruses or bacteria that are currently around could survive. It's apparently used widely with no regulation at all, and is found almost everywhere on earth, from...

Is it possible for a baby to be born with the Genetic makeup that will cause that child to grow into being a serial killer? Possible but probably not very probable. Did a lousy childhood bring this behavior about? Good possibility. But what could be other causes to bring about such an...

"Ten reasons why HIV could not cause AIDS", from my inbox... ============================================== Ten reasons why HIV could not cause AIDS (Excerpt) WalterNY 1.) HIV is harmless HIV reproduces itself through what is called reverse transcription. Its receptacle attaches to...

The difference between "What Cause" and "What Purpose". The aim of Philosophy is to pursue knowledge, understanding, and wisdom (usually in that order). There are many branches of Philosophy, and each branch has it's own limitations, which are not usually limitations of the whole of Philosophy...

http://arxiv.org/astro-ph/0309800 A group at University of Washington, Fardon et al just posted "Dark Energy from Mass-Varying Neutrinos" which does not seem to me as far-fetched as other speculation I've seen about cause of DE they seem to think that some element of their idea is...

Just a weird thought to roll around in your mind... Suppose for a moment, in the spirit of certain out-there physical theories, that parallel universes exist. Suppose more specifically that for every possible permutation of matter and energy in the universe, there exist corresponding parallel...

"A new theory links sudden infant death syndrome to dreams, suggesting babies may stop breathing because they are dreaming of being back in the womb, where they had no need to breathe." http://www.nationalpost.com/home/story.html?id=C60E647E-01DD-4D88-9548-9F6B7F1A7016

Causality Causality, the law of cause and effect, is the most general law used to describe the (physical) reality. The common conviction was that causality holds everywhere, at all time and in all cases. Since modern physcics and quantum mecahnics, this concept of reality has been altered...

What is the main cause behind mutation in evolution?

is it a worthy cause to pursue the fundamentals of our existence? i am an atheist but when the final results of a long search are realised it comes down to two posibilities, we don't know ,or god created everything full stop, so that leaves me two options become religeous or stay ignorant, or...

In thought experiments that I have done, I've always thought that there was another universe that is sort of an inverse to ours. It is composed of antimatter (it has "reversed" gravity-a force that repels) and its laws of physics are governed by imaginary numbers (i). If these two universes...

Particle-wave duality is caused by the motion of particles in the fabric of space. The outward motion of matter in the big bang is therefore balanced by inward directed fabric of space, maintaining a full continuity of volume, just as air moves into a suitcase when you take clothes out of it...