I want to understand this, but I can’t grok more than the headline and the potential applications. Is anyone able to explain it to someone whose physics knowledge is Year 12 + Vertasium? Like, how do massless photons even have momentum?! #science#lazyweb https://mastodon.social/@ScienceScholar/112401789379876027
If we switch a house from an electric hot water heater to a heat pump, we’ll save about 7.5kWh per day.
If we put that much energy into an EV, it’ll recharge it for about 45km of travel.
That’s more than the average car drives each day in Australia.
Upshot: Your hot water may use more energy than driving an EV would, the extra energy needed from the grid for EVs is not necessarily a step change, and the grid may be fine as-is if we reduce the use of inefficient electric appliances.
(REHW daily energy = ~10kWh, HPHW efficiency = ~400%, EV mileage = ~6km/kWh, average daily drive = ~35km)
My final thought on this.
Please vote after getting informed, and with empathy.
Don't wake up 😱 the day after voting 🗳️ on the Voice to Parliament 🗣️ to find you've helped put a stop to Indigenous reconciliation 🫱🏽🫲🏻 for a generation because someone fooled you 😈 into thinking a non-binding advisory panel is risky. 🤨
Don't know? Find out!
I've pulled together the most important facts about the Voice Referendum into this short, easy to read web page: http://thevoicefacts.com
Pass it on if you find it helpful!
#ClimateChange is INTER-GENERATIONAL THEFT.
Those companies which continue to produce fossil fuels and consume them without a plan for immediate and rapid transition are pushing trillions of $s of externalities onto future humans, so that their shareholders can be richer now.