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This is possibly probably definitely inspired by a certain television show I've been watching recently. Summary: Dear Show, Please do not be making up your own blood groups. You are doing it wrong. Frustratedly, Me.

[For those of you who have more background in this than I do, I'm going to be skipping over a lot of the details and picky bits (such ( Read more... )

This is a repost for unlocking purposes.

This is another one that I run across quite a bit: the interchangeability of "octave" and "decibel" in reference to sound, as though the two are equivalent or synonymous. Let's take a moment and do a couple of quick searches.

An "octave" is a specific measurement of relative pitch or frequency of two ( Read more... )

This is a re-post for unlocking purposes.

I run across this more often than I should when reading fanfiction.

A light-year is a measure of distance, not of time. It is the distance that light will travel during one earth year (365.25 days, if you want to be picky). One of Earth's nearest neighbors, Alpha Centauri, is 4.3 light-years away. Light ( Read more... )

(this is a repost)

For the record, Earth's general atmospheric composition (up to about 25km above sea level) is:
78% Nitrogen
21% Oxygen
1% Argon
0-7% Water Vapor (this varies greatly)
and assorted trace gases including (but not limited to):
ozone, carbon dioxide, neon, helium, methane, and hydrogen.

( now take a deep breath )

(this is a repost ( Read more... )

(okay, and a few toads)

This is a happy place in my day. I have to learn these for my lab practical, but I've caught myself listening just for the soothing sound of it, or for a laugh when I needed one, and I wanted to share the bounty with you. Go, listen, bask in the Happy:

Frog calls on the California Herps web site
Bufo boreas The Western ( Read more... )

This is a video from Harvard University about cells. Wait! Come back ( Read more... )