live U.S. restricts staff use of Saudi airports after deadly Houthi attacks
The U.S. has banned government employees working in Saudi Arabia from using airports in the country without special authorisation. It com...
Scientists claim to have discovered a new color, "olo", perceived during an experiment involving laser pulses aimed at retinal cells. The blue-green hue is more saturated than any natural color, but some experts question whether it should be classified as a true new color.
A team of scientists has claimed to discover a new color, called "olo", that no human has ever seen before. In an experiment, participants had laser pulses directed into their eyes, stimulating specific retinal cells, which led them to perceive a unique blue-green color. The color, named "olo", has been described as more saturated than anything seen in the natural world. However, some experts have raised doubts, suggesting that the existence of this new color is open to interpretation.
The study, published in Science Advances, was led by Prof. Ren Ng from the University of California. Ng and his colleagues believe the discovery could have implications for understanding color blindness. During the experiment, participants viewed a device called Oz, which directed laser beams at their retinas, specifically targeting M cone cells. This resulted in the perception of a color that doesn’t occur naturally in human vision, making "olo" an artificial but novel hue.
Though the color "olo" is difficult to perceive, it’s seen as a significant technological breakthrough, with potential applications for helping those with color vision deficiencies. However, experts have questioned whether the color should truly be classified as a "new" color, suggesting that the perception could depend on individual interpretation and the stimulation of cone cells in unusual ways.
The Saudi-led coalition said early Thursday that it intercepted and destroyed a drone over Saudi Arabia’s Eastern Province.
Yemen’s Houthis have claimed responsibility for the recent drone and missile strikes on Saudi Aramco facilities in Dhahran and Riyadh and at King Khalid International Airport in Saudi Arabia, vowing to carry out more attacks in the coming days.
The U.S. has banned government employees working in Saudi Arabia from using airports in the country without special authorisation. It comes after a deadly Houthi strike on Riyadh's King Khalid International Airport killed at least 13 people last week.
Ukraine's soldiers have had their access to Starlink satellite internet restricted. Kyiv's troops use the terminals, made by Elon Musk's SpaceX, to pilot drones. A source in Ukraine's Defence Ministry said the restrictions would make it harder for Kyiv's army to down Russian drones.
Ukraine is set to restart attacks on Russian oil refineries following a two-day pause, President Volodymyr Zelenskyy said, amid growing tensions with Washington over energy strikes and U.S. military support.
Satellite restrictions affecting Ukraine's military have put SpaceX's Starshield network under scrutiny, raising questions about who controls the technology and who can restrict its use during wartime.
More than three centuries after the dodo disappeared from Mauritius, efforts to bring the iconic bird back from extinction are taking a new step forward.
Hackers forced the temperature of fridges and freezers in hundreds of French supermarkets up to 50 degrees Celsius overnight, causing fires and food losses in what the Paris Prosecutor’s Office described as a “large-scale” attack.
A software engineer employed by OpenAI has been arrested and charged by U.S. authorities after investigators alleged he secretly placed a concealed recording device inside an executive conference room at the artificial intelligence company.
NASA's Perseverance rover has set a new driving record on Mars, travelling 45.2 kilometres since landing in 2021 and surpassing every other robotic vehicle to explore a world beyond Earth, the U.S. space agency said on Tuesday.
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