The new paintings weren't found in a secret room or beneath debris. In fact, they were right in front of everyones' faces this whole time, but faded enough that they couldn't be easily seen with the naked eye. Instead, scientists used a photo-enhancement technique to make the difference between colors more apparent, bringing long-lost paintings into view.
The big reveal was made by art expert Noel Hidalgo Tan, who was working at the site and spotted odd traces of reddish paint on the wall on day during his lunch break, LiveScience reports. Tan took some photos and didn't think much else of it. When he later uploaded the images to his computer and played around with them using a color-enhancing technique called decorrelation stretch analysis, he was shocked to find an entire menagerie of detailed imagery.
It's not the first time the technique, called decorrelation stretch, has been used in science. NASA uses DStretch to enhance photos from Mars and archaeologists the world over use it to make faded, ancient petroglyphs easier to study. The picture above this paragraph is a petroglyph image from Baja California enhanced with DStretch. Below, you can see what that same image looked like without the technique applied. It's easy to see how paintings could go totally unnoticed without it.
When Zoe Stavri woke up with a yeast infection, she had a strange and intriguing idea: what about adding some of her vaginal candida to sourdough starter?
Nick Sousanis, who delivered his doctoral dissertation in comic book form, has a new comic in the current Nature magazine, explaining the last 25 years’ worth of climate talks, as a primer in advance of the Paris climate talks next week.
Randall “XKCD” Munroe’s Thing Explainer: Complicated Stuff in Simple Words arrives in stores today: it combines technical diagrams and wordplay in pure display of everything that makes XKCD brilliant and wonderful in every way.
This minimalist multi-tool will see to it that instead of rocking a tool belt, you’ll carry just one. It’s shaped slightly like a key and weighs less than an ounce, so it plays nice with your keychain. The strong surgical-grade stainless steel blade will last, and is handy for everyday tasks like opening boxes and […]
The Code Black is our top-selling drone of all time—and for good reason. This powerful, palm-size drone is not only insanely fun to fly, but can capture some serious video footage from up above. With a flight time of about 10 minutes and an ultra-smooth ride, it’s a great introductory drone for anyone looking to […]
Don’t get handcuffed by Apple’s standard 3-foot Lightning cord (that you’ve most likely already lost), treat yourself to 10 feet of luxurious charging convenience. The Colossal is certified by Apple for its high-end quality, and designed to support full use of your phone while you power up. You can also get it in a 2-pack […]