Breaking News         Latest US News              New York News              Fx Tribune

Building the ideal house: the importance of visualization
Brian KlutchOut of shapeHint: Water and air have different densities.Place a straw in a glass of water, and behold: It looks broken. What’s tricking your brain?Similar to this illusion, the light that reflects off the straw allows your visual system to...

Why does this straw look like it's broken?

Brian KlutchOut of shapeHint: Water and air have different densities.Place a straw in a glass of water, and behold: It looks broken. What’s tricking your brain?Similar to this illusion, the light that reflects off the straw allows your visual system to...

Why does this straw look like it's broken?

Brian Klutch

Out of shape

Hint: Water and air have different densities.

Place a straw in a glass of water, and behold: It looks broken. What’s tricking your brain?

Similar to this illusion, the light that reflects off the straw allows your visual system to process and identify its shape as it travels through mediums of varying densities. But as light passes from air into water, which is denser, it changes direction, or refracts.

Your brain can’t correct for these visual effects, so it decides on the location of the object (the straw) based solely on where the reflecting light is coming from. Above the water, the light reflects from the straw through the air and glass to your eyes. But below, when the light also travels through water, the refraction causes the image of the straw to be in a slightly different location. The water also acts as a type of magnifying lens, making the size of the straw seem larger than it actually is. To the brain, the straw appears broken (and bloated).

That’s why spearfishing is so hard to master. From far away, the fish you are eyeing always looks nearer to the surface of the water than it actually is. The key is to get as close to the fish as possible, without it seeing you. ­Otherwise, you go home empty-handed.

This article was originally published in the March/April 2017 issue of Popular Science.

Our editors found this article on this site using Google and regenerated it for our readers.

Publish Date : 23 Şubat 2017 Perşembe 18:37

Breaking News Headlines

Drive Safe: 5 Road Crash Facts That Will Absolutely Shock You
Drive Safe: 5 Road Crash Facts That Will Absolutely Shock You
Open Championship 2019: What makes Royal Portrush so unique?
Open Championship 2019: What makes Royal Portrush so unique?
Brexit – the beast that ended Theresa May’s reign as prime minister
Brexit – the beast that ended Theresa May’s reign as prime minister
Why do adults take multivitamins?
Why do adults take multivitamins?
Challenges of Studying MBA online and Suggestions to Overcome Them
Challenges of Studying MBA online and Suggestions to Overcome Them
Was Road-Rage To Blame For This New Jersey Semi-Truck Accident?
Was Road-Rage To Blame For This New Jersey Semi-Truck Accident?
Tobacco is the leading cause of cancer – Switch to e-cigs to avoid premature death
Tobacco is the leading cause of cancer – Switch to e-cigs to avoid premature death
Technology Advancements: How will Things Change?
Technology Advancements: How will Things Change?
Bad Science – Ensuring We Keep Things Simple
Bad Science – Ensuring We Keep Things Simple
A Meaningful Life: Just What You Need for Better Health
A Meaningful Life: Just What You Need for Better Health
What to Expect at the Canadian Citizenship Test and Tips to Prepare
What to Expect at the Canadian Citizenship Test and Tips to Prepare
Tipping in America- What Should You Know as a Traveler?
Tipping in America- What Should You Know as a Traveler?
POLLS Results ALL
Who is the most powerful actor in Syria

Front Pages
  • The Sun
NEWS ARCHIVES