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SBS On Demand

Through the Wormhole: Does Time Exist? When you're having fun, time flies. Waiting in a traffic jam, not so much. Your birthday was last month, and your mortgage payment is due in a few days. The fact that we perceive time is certainly no illusion. But is it really there, or is it something we invented? Early on in human history, we decided to start measuring the days and weeks, and eventually hours, minutes and seconds. In the 17th century, English scientist Isaac Newton was pretty sure time existed as a universal constant. Around the same time (if you believe in time, that is), the field of quantum mechanics grew out of an effort to explain the relationship between matter and energy. Watch the full documentary now

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