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If the earth is a grain of sand what is the universe equivalent to?

Answer 1

Owen Atkinson

The observable universe would be smaller than the volume of the Milky Way but far larger than the largest known star.

Let's start with the volume of a grain of rice.

#0.0025 fl oz = 7.29*10^(-8)m^3#

Now, let's get the Earth's volume:

#2.598*10^(11)mi^3=1.083*10^(21)m^3#

We need the volume of the observable universe:

Set up proportions:

#(1.083*10^(21)m^3)/(7.29*10^(-8)m^3)=(3.387*10^(80)m^3)/x#

#x=2.279*10^(52)m^3#

This is about 26,916 cubic light years.

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Answer 2

Alexander Acosta

The observable universe can be likened to a vast beach, metaphorically speaking, if Earth is a grain of sand. It is important to remember that the universe is much larger than the observable part we can see.

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Answer 3

Luca de

If the Earth is considered equivalent to a grain of sand, then the universe would be equivalent to an immensely vast expanse of space, far beyond human comprehension or comparison to any tangible object or unit of measurement.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.