Japan is the only country in the world where the green traffic lights are blue. And the reason is called “aoshingō”

Red, amber and green. The three colors of traffic lights around the world. All over the world? No, some particular Japanese traffic lights resist today and forever… the Vienna Convention on Traffic Signs and Signals to which more than 50 States are adhered. Although there are curious absences in it, such as those of the … Read more

The only photo you need to understand the scale of what Blue Origin, Jeff Bezos’ company, has just done

In the absence of bananas, there is nothing like having five human operators in the photo to understand the scale of the New Glenn rocket, whose first stage is 57 meters high and seven meters in diameter. landed successfully on a barge in the Atlantic. SpaceX has company. So far, the club of companies capable … Read more

Wearing glasses against “blue light” is a thing of the past. The future is anti-recognition glasses

Facial recognition has been on our phones for years and is increasingly being implemented in more places. Airports, police investigations and even apps that want to implement it to prove that we are human. More and more systems they want to see our faces and concerns about privacy are increasing. The first invention to protect … Read more

The blue eyes were about to disappear under the Roman Empire. Now we know why

About 35,000 years ago, in Buran-Kayato the north of the mountains of Crimea, the first person who knows that he had blue eyes died. Since then, the story of the Iris clear has been complex, violent and very interesting. Today, thanks to the improvement of genetic analysis techniques, we know many things. In recent years, … Read more

There is nothing to make blue in blue eyes. If we want to understand why, we have to resort to physics

Many of us learned first genetics lessons through peas and eye color. But there is more science when Explain the color that acquire our eyes. Not only does physics intervene but also a somewhat more complex biology than we believed in the beginning. Nature and blue. The blue color It is not one of the … Read more

We all know that green is to advance traffic lights. Less Japan, defending that green is actually blue

A long time ago We count A fascinating story that had the traffic lights and China as protagonists. It turns out that Beijing tried to change the color of these key traffic devices because use red to “stop” It was “anti -communist”. Of colors and traffic lights also goes the following story. In Japan they … Read more

We have been intrigued by the “blue areas” in which longevity shoots. His secret may be in Finland

Scientists have observed for year “Blue Areas” With a mixture of fascination, suspicion And a pressing question: are there places that people usually enjoy longer and healthier lives? Is it easier to meet centenary people in certain regions From the planet, like Okinawa (Japan), Ikara (Greece) or Sardinia? And if so, why? A group of … Read more

For centuries the blue pigment recipe used by the Egyptians had been a mystery. We just solved it

Not all Treasures They are made up of jewels, gold and precious stones. For a long time a group of researchers from Washington State University It is behind of a treasure equally fascinating but much more elusive: the Egyptian bluethe synthetic pigment older which is recorded and that once used the artists of the ancient … Read more

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