Gravity is an incredibly weak force. It may be the force we perceive the most, especially when we fall down the stairs, but it takes the mass of the entire Earth make that happen. Despite its weakness, it is also the force that gives the Universe its structure, provides the pressure to drive stars, and keeps galaxies together. We might be grateful that gravity isn't stronger, but it is also curious that it is so much weaker than everything else.
When scientists are faced with something they don't understand, their first response is to make more and better measurements. Past experience tells us that understanding is often a function of the number of significant figures in our measurements. The truth is that our measurements of gravity have been well and truly left behind by those on electromagnetism. So, taking techniques learned in our fight to understand quantum mechanics and electromagnetism and applying them to our measurements on gravity makes a great deal of sense. This is exactly what a group of physicists who happen to like bouncing balls have done.
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Vanessa Simmons Chyler Leigh Julie Berry Lori Heuring Nicole Scherzinger
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