Matt Ferrell lives in the Boston area and is a UI/UX designer by trade, but has always been obsessed by technology and how it works. In 2018 he started his YouTube channel, Undecided with Matt Ferrell, where he explores sustainable and smart technologies like EVs, solar panels, and smart homes.
You're listening to me right now through speakers run by magnets. Your smartphone might have another 18 of them. They're in your earbuds, your car, the wind turbines feeding the grid. And most of us never think about them until the supply chain breaks. China throttled rare earth exports last year.…
Bigger batteries take longer to charge. Right? Researchers in Australia just tested one that flips that rule completely. The larger they built it, the faster it charged. It runs on quantum effects, and the very first version charged with light from a laser, no cord required. Scientists call the…
I got an exclusive backstage look at Disney World expecting a polished sustainability tour. Then I watched old beer bottles get ground into sand, stood in an overgrown solar field built for native bees, and traced food scraps through a closed loop recycling system that once helped power the parks.…
You know what an offshore wind turbine looks like. A giant pole, three blades, bolted to the seafloor. The catch is it only works in shallow water, around 80 meters or less. That rules out most of the ocean, which is where the strongest, steadiest winds actually are. A Swedish company called SeaTwir
What if all the heat your car engine, a factory, or a power plant throws away could run the grid instead? A new engine turns that waste heat into electricity, even the low-grade stuff today's best systems struggle with. It has no moving parts, and the wild part is who built it. Dr. Lonnie Johnson, t
How a Plug-In Home Battery Finally Works for Renters and Apartments. For most people right now, home batteries kind of suck. You spend ten to fifteen thousand dollars, wait on permits, and pay an electrician, and that is only if you own a house that can take one. A new plug-in home battery changes t
How a Saltwater Battery Desalinates Seawater and Captures Carbon. Drop your phone in the ocean and you learn fast that seawater destroys batteries. So a seawater battery that actually runs on the stuff sounds backwards. Yet researchers in Korea have spent over a decade building one. This single syst
There's $67 billion in critical minerals sitting in your trash can right now. Old laptops, dead drills, that printer you keep meaning to throw out. The piles of waste outside old mines hold even more. By some estimates, between e-waste recycling and mine tailings, America already has nearly all the
Every year, some company claims they've cracked long-duration energy storage. And every year, we're still leaning on lithium-ion batteries that tap out after a few hours. You've heard the promises. You've seen the press releases. And you're probably as tired
The war in Iran just triggered the most severe oil supply shock in history. Start your 7-day free trial + unlock 4 extra months of Surfshark VPN — head to https://surfshark.com/undecided or use code UNDECIDED at checkout! Gas prices had their biggest one-month spike ever. The average American househ
You know that stretch where you hit every green light perfectly? Well, that might not be luck anymore. There's an AI system that watches every car, bike, and pedestrian approaching an intersection in real time… and lines up the lights so you cruise right through. And the numbers on how much faster p
How This Heat Pump Water Heater is Also a Battery. Go to https://ground.news/undecided for an innovative way to stay fully informed on tech, energy, the climate and more. Save 40% on the Ground News unlimited access Vantage plan with my link. Heat pump water heaters have been around for over a decad