[Flash 9 is required to listen to audio.] Title: 18 Harry Potter - Leaving Hog
Artist: Harry Potter Soundtrack
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perfectly-peachy:

The pure fact that this doesn’t even need a title or a description or anything speaks volumes. I mean look at the number of notes this has. There are so few people who don’t recognize it. And the song itself just gives you chills. It’s so magical.

→ Persiko: Our brain judges the color of an object by comparing it to surrounding colors.

did-you-kno:

Take a look at this image, You see embedded spirals of green, pinkish-orange, and blue? Incredibly, the green and the blue spiralsare the same color.

The reason they look different colors is because our brain judges the color of an object by comparing it to surrounding  colors. In this case, the stripes are not continuous as they appear at first glance. The orange stripes don’t go through the “blue” spiral, and the magenta ones don’t go through the “green” one. Here’s a zoom to make this more clear:

The orange stripes go through the “green” spiral but not the “blue” one. So without us even knowing it, our brains compare that spiral to the orange stripes, forcing it to think the spiral is green. The magenta stripes make the other part of the spiral look blue, even though they are exactly the same color.

Source

“The world is beautiful, but has a disease called man.” – Friedrich Nietzsche  (via downwsociety)