reblogged kids in the hall and tumblr knew i was both canadian and drunk.
The geometry of diatoms, desmids and other algae.
JOINTS IN MOTION
As said by IFL science
Cameron Drake of San Francisco has created a collection of magnificent images showing joints in motion. He was aided by orthopedic physician Dr. Noah Weiss and the finished product is completely amazing. If you’d like to know more about the project, please check out Drake’s blog.
Wavves // Dog
wavves /// baseball cards
Berenice Abbott. Science Photography. 1958-1961.
Signal Collection and Parabolic Reflectors
A reflector is a type of antenna that receives and focuses various types of signals. Reflectors have numerous applications, from satellite dishes and telescopes, to long-distance microphones and car headlights. One common feature of these examples is their parabolic shape, giving them the name parabolic reflectors.
It turns out that paraboloids are the perfect shape for focusing signals from distant sources. When pointed directly at the the incoming signal, a parabolic reflector (GIF 1) collects the signal to a single focal point, where a receiver, called a feed horn, is placed to collect the focused transmission.
In many applications, parabolic reflectors are too costly to produce, so spherical reflectors (GIF 2) are used instead. The disadvantage of spherical reflectors is that they have multiple focal points, and therefore produce blurry results.Mathematica code posted here.
This code is incredibly messy and I guarantee there’s a better way to calculate this. Please contact me if you have suggestions!