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Polyurethane foam expansion

Polyurethane (a polymer) foaming by the chemical reaction of two components: Isocyanate (the dark component in this video) and polyol containing chemical additives and blowing agents (the clear component). The chemical reaction generates heat- an exothermic reaction- which contributes to the expansion and final curing of the foam. The proportions and formulations of both products are defined according to the industrial application: flexible, semi-rigid or rigid foams. 

Typical flexible polyurethane foams: mattresses and automotive seating.

Typical semi-flexible polyurethane foam: steering wheels.

Typical rigid foam: insulation in household refrigerators.

video and blurb source

…or the parliament, whatever you call it.

(Source: mediaite.com, via mediaite)

First you get the doctorate, then you get the scientist job, then you get to tickle rats at work.
How do we know that the rats actually enjoy it and are not just squeaking in anguish and confusion? Well, first they conditioned the rats to be afraid of a certain audio tone — the rats would freeze up and become nervous whenever the sound was played. But then, if they tickled the rats beforehand, the rats showed less physical and hormonal signs of fear when they heard the sound.

First you get the doctorate, then you get the scientist job, then you get to tickle rats at work.

How do we know that the rats actually enjoy it and are not just squeaking in anguish and confusion? Well, first they conditioned the rats to be afraid of a certain audio tone — the rats would freeze up and become nervous whenever the sound was played. But then, if they tickled the rats beforehand, the rats showed less physical and hormonal signs of fear when they heard the sound.

(via cracked)

For some weird reason I find this more impressive than the KUKA robot.

(Source: coolsciencegifs)