17.4.06

The longest day of your life


Is your day dragging on? Does today feel like it's the longest day of your life? Well, that's probably because today is the longest day. Blame the Moon – its gravitational effect on our planet creates tidal "bulges", which slowly transfer momentum from the Earth's rotation to the Moon's orbit. As a result, the Earth's rotation is slowing at a rate of around 0.02 seconds per century – and each day is fractionally longer than the day before. Therefore, the longest day on Earth is always today!


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