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Dwarf galaxies suggest dark matter theory may be wrong. 16 September 2011Last updated at 18:47 By Leila Battison Science reporter, Bradford Dwarf galaxies around the Milky Way are less dense than they should be if they held cold dark matter Scientists' predictions about the mysterious dark matter purported to make up most of the mass of the Universe may have to be revised.

Dwarf galaxies suggest dark matter theory may be wrong

Research on dwarf galaxies suggests they cannot form in the way they do if dark matter exists in the form that the most common model requires it to. That may mean that the Large Hadron Collider will not be able to spot it. Leading cosmologist Carlos Frenk spoke of the "disturbing" developments at the British Science Festival in Bradford. The current theory holds that around 4% of the Universe is made up of normal matter - the stuff of stars, planets and people - and around 21% of it is dark matter. The remainder is made up of what is known as dark energy, an even less understood hypothetical component of the Universe that would explain its ever-increasing expansion. Theory of Everything : String Theory ~ Tech Guru. Einstein died an annoyed man.

Theory of Everything : String Theory ~ Tech Guru

After he shot to international stardom with his theory of General Relativity, he had devoted his life to a “unified theory” that connected the two major forces in the universe — gravity and electromagnetism — but it only ended in frustration. But in the sixties, scientists came across a mathematical equation that promised to change everything we knew. String Theory says that everything — from quark to atom to human to planet — is fundamentally composed of little vibrating strings. You’re probably asking, “So what?” The reason string theory is such a big deal is that if true, it successfully describes all four natural forces — gravity, electromagnetism, and strong and weak nuclear forces — with a mathematical elegance that other theories only dream about. The story of gravity When Newton described gravity, it made perfect mathematical sense.

Enter Einstein. While the world was still busy praising this new theory, Einstein wanted to take it one step further. Testing String Theory? How Real Science Progresses « The Skeptical Teacher. Something very interesting has happened recently in the world of theoretical physics.

Testing String Theory? How Real Science Progresses « The Skeptical Teacher

One of the hottest ideas around is the notion of so-called string theory: it’s the idea that all matter & energy in the universe – from the electrons & quarks that make up atoms to photons of light to everything in between – is composed of ultra-tiny strings of vibrating energy. It’s a marvelous and mathematically elegant idea, one which many theoretical physicists believe holds the key to unifying the fundamental forces of nature, but it suffers from a big flaw: these strings are, according to the theory, so small that we have no way to experimentally detect them. Thus, if such is the case, then many physicists & critics of string theory have equated the idea with a dragon in the garage, an unfalsifiable notion which isn’t subject to scientific investigation. I have placed myself into this category of string theory skeptics for quite a long time for this very reason… … up until now, that is.