Briam Lam figured out the best LED lightbulb, and explains why it will eventually pay for itself: "They'll last 15-25 years compared to about a year for regular bulbs [and] 1/5th of the power ... so they can eventually save you hundreds of dollars." [Wirecutter]
LA's next source of energy: a massive solar panel and lithium battery array in the Mojave, operated by 8minute Solar Energy, and capable of supplying 6-7% of the city's energy budget, with four hours of nighttime use. It will cost an eye-poppingly low $0.03.3/kWh, cheaper than natural gas.
A new report from the International Institute for Sustainable Development (IISD) estimates the cost of subsidizing a full transition to clean energy, and comes out with a figure that is only 10-30% of the subsidy presently given to the planet-destroying fossil fuel industries.
In Numerical investigation of the convection heat transfer driven by airflows in underground tunnels (Sci-Hub mirror), a group of engineers from L'Ecole Polytechnique Fédérale de Lausanne and the Swiss Federal Institute of Technology propose that low-cost heat-exchangers placed in subway tunnels could be used to heat and cool homes essentially for free (the system would […]
Do you have any Star Wars fans on your list? Given the reach and output of its new corporate masters these days, it might be easier to ask if there’s anyone out there who isn’t a Star Wars fan. So let’s narrow it down further: Do you know a Star Wars fan who likes to […]
There’s much ado about coffee brewing methods these days, but most of us – at least on the busy weekdays – just want our morning joe to be consistent, easy, and most of all, fast. If that sounds like anyone on your Christmas list, they’re going to get a lot of mileage out of the […]
Online shopping is going to be through the roof this month, and you’d better believe that hackers know it. If you’re going to invest in a virtual private network, now is the time. Especially when Windscribe VPN is offering its own holiday discount. At their current price point, it’s well worth jumping on the paid […]