Summary

Astounding Stories of Super Science… (1930 <!-- | portal)

The value of a radio signal to the moon lies in the confirmation of whether there is or not heavy absorption of waves in the upper levels of our own atmosphere. If successful it would indicate a reasonably good reflection coefficient at the surface of the moon—the power of the moon's surface to act as a joint agent in the perfection of the signal.
Source: Wikisource

Astounding Stories of Super Science… (1930 <!-- | portal)

To be exact, a radio signal should be reflected back to earth in a time interval of 2.8 seconds, this being the necessary elapsed time for it to carry the 250,000 miles to the moon and return at its speed of 300,000 kilometers, or 186,000 miles per second.
Source: Wikisource

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