The Power of Joules: Unpacking the Basic Unit of Energy

Let's understand the basic unit of energy, from 1 joule to its massive scales.

The SI unit of energy is ‘Joule.’ Imagine lifting a small apple to a height of 1 meter against gravity, that's approximately 1 joule of energy, which is also the energy an average human heart expends with each beat.

Now, let's scale up to 1 million joules of energy, which is roughly the energy required to heat 3 liter of water from 15°C to its boiling point at 100°C, equivalent to the energy expended by an athlete completing a grueling 5-kilometer race.

On an even larger scale, 1 billion joules or 1 gigajoule is about the energy stored in 30 liters of gasoline, which could propel an average car for approximately 400 kilometers, and also corresponds to the food energy required by an average person over 100 days.

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