pioneer-hyperfine

Here’s a diagram of the hyperfine transition, on a plaque that we strapped to the Pioneer spacecraft and flung into interstellar space. Hopefully, aliens will be able to figure out what it means, so that we can establish a common system of units with them. Source: http://sciencecavern.com/space/the-pioneer-plaque-a-message-from-humankind/

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s