One of the more expensive parts of the cameras built-in to smartphones is the lens system. That’s because lenses have to be made in an entirely different way to the electronic components that make up the rest of the phone.In recent years, physicists have hoped to change this with a new type of “metalens” that can be carved onto a flat sheet of silicon dioxide or similar material. Metalenses consists of pillars of silicon that are each about the same size as the wavelength of light. These p ...read more
Talking pets have been the darlings of social media recently. The trend started after Christina Hunger, a speech pathologist, made headlines when she adapted techniques she used with children to teach her dog, Stella, to communicate. Stella, and now hundreds of dogs and cats, use augmentative and alternative communication (AAC) to “talk” with the humans in their lives. AAC takes the form of buttons affixed to a soundboard. When the pet presses a button, it plays a recording of a word, such ...read more
Just like people, dogs are susceptible to stress during the holidays. When things are hectic, dogs can be negatively impacted by the changes. Here are some situations that are potentially troubling for dogs during the holidays. But with some basic planning and care, your dog can remain happy and enjoy the holidays, along with the rest of your family.1. What are the Signs of Stress in a Dog?(Credit:Julia Zavalishina/Shutterstock) Dogs will exhibit certain behaviors when they are upset, stressed, ...read more
Whether you’ve watched the beloved animated film or walked past his statue in Central Park, there’s a good chance you’re familiar with Balto the sled dog.Long believed to be a Siberian husky, Balto — perhaps the most famous sled dog of all time — gained superstar status for his role in delivering diphtheria medication to sick children in Nome, Alaska, in 1925. Now, scientists have analyzed his DNA, comparing his genome to the genomes of nearly 700 dogs and wolves to reveal how Balto st ...read more
Often, when archaeologists dig up an artifact that's thousands of years old, it requires some imagination to picture what it might have looked like back then. That certainly wasn't the case for a team of scientists who peered into a gravesite in southern Bavaria.In 2023, archaeologists in Germany unearthed a Bronze Age grave containing a 3,000-year-old sword that’s so extraordinarily well-preserved that it "almost still shines," says Bavaria's State Office for Monument Protection in a stateme ...read more
Author Vishay SinghPosted on Categories Discover Magazine