You know the infinitely long tunnel that appears when you look into two mirrors that are pointed at one another? Have you ever noticed that the tunnel becomes more and more green, the deeper you go?
YouTube personality Vsauce has a fascinating new video titled “What Color Is A Mirror?”. In it, Mr. Sauce explains that this is due to the fact that there is no such thing as a perfect mirror (i.e. a mirror that perfectly reflects 100% of light). The fact is, a typical mirror best reflects light in the 510nm range, which we perceive as green light. Read more…
Ever since NASA’s Curiosity rover landed on Mars and started beaming back photographs earlier this week, people have been wondering, “why are the photos so bad?” The criticism seems merited: consumers these days are snapping great high-res photographs using phones that cost just hundreds of dollars, yet NASA can’t choose a camera with more than 2-megapixels of resolution for their $2.5 billion mission?
Gigapixel images are usually used to capture tiny details in expansive scenes, but scientists in the Netherlands recently created one that shows microscopic details in a tiny subject. Using a technique called virtual nanoscopy (a new relative of microscopy?), the researchers created a massive 281-gigapixel image of a 1.5-millimeter-long zebrafish embryo. Read more…
NASA’s Curiosity rover landed on Mars this morning with much fanfare here on Earth. The photo above is one of the first photographs snapped by the rover and beamed back to Earth. Captured through a fisheye wide-angle lens, the landscape photo hows a gravel field in the foreground and the rim of the Gale Crater (the rover’s new home) in the distance.
The image is blown out in the upper region due to the fact that the camera is pointed straight at the sun. Unlike our Earthling cameras, however, the one-megapixel Hazard-Avoidance cameras (Hazcams) on the rover are not damaged by the sun. Read more…
What would photographs of the night sky look like if other planets in our solar system replaced the Moon? This beautiful video by 3kingAmazing (remixed using a video by Brad Goodspeed) shows the answer.
This image might look like some kind of screenshot from an old 16-bit video game, but it’s actually the first photo ever made of an atom’s shadow. Researchers at Griffith University in Australia suspended a ytterbium atom in midair, shot it with a laser beam, and then used a Fresnel lens on the other side to snap a photograph of the dark shadow left by the atom. Scientist Erik Streed has a writeup explaining how they accomplished it and the project’s implications for other research.
Chemistry and physics teacher MattAttackPro shot the above photo showing what happens when a roll of unused 35mm camera film is dropped into a beaker of hydrochloric acid. What you’re seeing is the emulsion (light sensitive chemicals suspended in gelatin) separating from the clear plastic backing.
Here’s another video featuring SF photo shop Photobooth and its tintype portraits. Will and Norm of Tested talk to shop owner Michael Shindler, who goes in depth into how tintype photographs are created and the science behind the process.