Then again, even intelligent aliens might be too busy or too shy to send messages to the stars. So SETI researchers also hope to detect passive signs of technology. People’s ideas about what to look for often reflect their time: Consider the 19th century “discovery” of canals on Mars when canals were still a common form of transport on Earth. In 1960, amid rapid economic growth and concerns about energy shortages, physicist Freeman Dyson imagined an advanced society might build a megastructure surrounding a star to capture its energy. Such “Dyson spheres” continue to fascinate and were suggested as an explanation for the strange dimmings of the star KIC 8462852, known as Tabby’s Star. In 2015, Jason Wright led a search for the glow of Dyson spheres in 100,000 nearby galaxies, using data from NASA’s Wide-field Infrared Survey Explorer satellite. … [Read more...] about How big money is powering a massive hunt for alien intelligence
Using solar power at home
"Our data centres power the products and services you've come to rely on every day. This will mean every email you send through Gmail, every question you ask Google Search, every YouTube video you watch, and every route you take using Google Maps, is supplied by clean energy every hour of every day." … [Read more...] about Google commits to run using carbon-free energy by 2030
Ring Video Doorbell 2nd Gen More accurate detection and improved privacy Source: Ring Ring has utilized its expertise in motion detection and now provides the same Near Zone motion detection method you can find on the Ring Video Doorbell 3. The Near Zone detects motion only between 5-15 feet of the video doorbell, helping to more accurately identify when someone is on your doorstep. Cutting out movement further away than 15 feet helps eliminate erroneous movement detection from cars or foliage blowing in the wind. Similarly, ignoring any movement closer than 5 feet helps cut out those annoying notifications caused by bugs flying in front of your camera. … [Read more...] about Ring Video Doorbell (2nd Gen) vs. Ring Video Doorbell (1st Gen): What’s the difference and should you upgrade?
All these things are things that people can understand. Climate change is kind of an esoteric issue, and when you're worried about whether you can stay in your home, whether you're going to be able to pay your mortgage, whether your kids are going to get an education, or that you're safe, talking about climate change is a lot harder to engage. But when you talk about health, people get that. And they want healthy, clean air to breathe, they want clean water. Those are things that really matter on an absolute basis. … [Read more...] about Former EPA head talks clean power, nuclear, and Bush’s climate reversal
If you're looking to buy more than one device, you can go even cheaper than these without reducing the level of performance. Eufy's Indoor Cam 2K Pan & Tilt is one of the few devices to match up with Nest Cam Indoor, offering similar zoom, person/object recognition, and a spinning base at a fourth of Nest's base price. If you want to build the best home security system for a reasonable price, Ring and Eufy cameras are a great place to start. … [Read more...] about Best Affordable Nest Cam Alternatives 2020