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bluerobotto:

Since my last giveaway was a success I decided to do another one :D  this one ends in just one week :V

PRIZE:

You can win one messenger bag from the ones available in BlueRobotto’s shop (Check out the shop for more pics and the description of each bag)

2 persons will be selected to win a messenger bag of their choice (1 each winner).            

How to participate:

  • You don’t have to follow BlueRobotto.
  • Reblog this post to participate, only 1 reblog to prevent spam.
  • Likes count too.
  • If you win I should be able to contact you through your tumblr (very important).

Things to consider:

  • Shipping to anywhere in the world, BlueRobotto will cover the shipping expenses.
  • Any question feel free to send a messege :)

The givaway will end on Saturday October 25th, at 10:00 PM Central America time.

Good luck to everyone who participates :D

You can also contact BlueRobotto on twitter @bluerobotto if you want to ask anything.

thalassa-gramarye:

zerostatereflex:

Not everyone sees the same color when they stare at this spinning disk.

The gif is called, “Benham’s disk" "is named after the English toymaker Charles Benham, who in 1895 sold a top painted with the pattern shown. When the disk is spun, arcs of pale color, called Fechner colors or pattern-induced flicker colors (PIFCs), are visible at different places on the disk. Not everyone sees the same colors."

"The phenomenon originates from neural activity in the retina and spatial interactions in the primary visual cortex, which plays a role in encoding low-level image features, such as edges and spatiotemporal frequency components."

Fascinating how our brains work, I see a brown tan, what do you see? :D

Light blue?

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