Black water

nature1_ riverstream
Larger image.

Ever wondered why the ocean is so blue? Well, it isn’t reflection of the colour of the atmosphere that’s behind it. No, that popular explanation is wrong, though not completely. It’s just that water isn’t completely transparent. If you get enough water molecules together in one place, like in an ocean, then you can see the effect: Light that isn’t blue is absorbed, and light that’s blue isn’t.

Then, of course, water’s black sometimes. But that’s a different story.


Now read this:  Earth Observation – special cases


© 2018 Alexander Biebricher All Rights Reserved
Advertisements

Leave a Reply

Please log in using one of these methods to post your comment:

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 )

w

Connecting to %s