700 nanometers is a very small length, so it's hard to find everyday objects that are exactly that size. Here's how you can think about it:

* It's about the size of a typical virus. Viruses are incredibly small, and 700 nanometers is within the typical range of their sizes.

* It's about 1/1400th the width of a human hair.

* It's about 1/200th the wavelength of red light.

So, 700 nanometers is really tiny!