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Back to the Beginning The world’s leading astrophysicist, Stephen Hawking, who has held the esteemed position of Lucasian Professor of Mathematics at Cambridge, calls Hubble’s discovery of an expanding universe “one of the great intellectual revolutions of the twentieth century.”6 The discovery that the universe had a beginning has led to a new science called cosmology, which attempts to understand what happened at the origin of the universe, how it works, and what will happen in its future.The new science led cosmologists to take another look at a seemingly mundane insight from the 19th century, the second law of thermodynamics. A SECOND LAW OF FIRST IMPORTANCE In addition to Hubble’s discovery, the second law of thermodynamics also predicts a beginning to the universe. You say you don’t know the second law of thermodynamics? Think again. Let’s say you come into a room containing me and a bunch of your other pals, and you find a steaming cup of Starbucks coffee on the table. Being the thoughtful individual that you are, you ask, “Does this belong to anyone?” To which I reply, “It’s been there for the last month.” Well, you’d know immediately I was wrong or lying (probably lying). Why? Because the coffee wouldn’t still be hot if it had been there for a month; it would be room temperature. That’s the second law of thermodynamics in action. This law states that everything continually moves from a state of order to disorder and that heat and energy dissipate over time. This is a law that has been verified by proof after scientific proof and has never been shown to be wrong. Now let’s apply this law to the universe, just as cosmologists have. If the universe were eternal, it would have gone cold and lifeless long ago. The stars would have burned out. Planets would have broken up into clouds of dust. And even the black holes would have ceased vacuuming the universe of unsightly stars and planets. When you see flaming suns and scorching meteors, in other words, you’re looking at a steaming cup of coffee that over infinite time would have long since gone room temperature. Since the universe is still full of pockets of heat and energy, it cannot be eternal. Who would have thought heat would be such a helpful clue? And that’s just the half of it. THE SIGNIFICANCE OF TV INTERFERENCE There is still another way that the measurement of heat help to prove that the universe is expanding. In the spring of 1964, two researchers at Bell Labs observed a persistent hiss while testing their microwave radiation detector. Regardless of which direction they pointed the antenna, the static was the same. (This is the same static as TV interference. The same static that was supposed to be gone when I paid $150 to have my satellite dish installed.) Those men, Arno Penzias and Robert Wilson, had discovered what scientists say is the echo from the birth of the universe.7 (This is an excerpt from just one article in Y-Origins. Order your copy here) Back / Next |