What if all the heat a factory throws away could run the grid instead? Check out our video on it, here: https://www.youtube.com/watch?v=MuQRxatte5g Or check out the page on our website, here: https://undecided.tech/how-the-super-soaker-inventor-built-the-most-efficient-heat-engine-ever

Is this the invention that finally turns low-temp waste heat into a hot commodity? Check out our video on it here: https://www.youtube.com/watch?v=MuQRxatte5g Or check out the page on our website, here: https://undecided.tech/how-the-super-soaker-inventor-built-the-most-efficient-heat-engine-ever

🖖Calling all Star Trek fans … new Trek in Time episode is out on my other channel: https://youtu.be/vH-BfLoDcrk Audio: https://shows.acast.com/trek-in-time/episodes/6a3d51c526d5a6687a3e9ad0. Sean and I talk about the release of all stakes in Star Trek TOS Season 3, Episode 14, “Whom Gods Destroy.”

Latest podcast is out! YouTube: https://youtu.be/LhbPajWdgUk. Audio: https://shows.acast.com/still-to-be-determined/episodes/6a3a89c86cc0d2f382550e79. We talk with Dr. Lonnie Johnson about his most ambitious project yet: a heat engine with no moving parts that converts waste heat into electricity.

Half of US households can't install a home battery. Renters and apartment dwellers get left out entirely. One that plugs into a normal outlet finally changes all that. Check our video on it: https://youtu.be/jl-rwZjdD3Y Or check it on our website: https://undecided.link/4uKmJ4t

Home batteries suck for most people. Ten grand, a permit, an electrician, and only if you own the right house. So what about batteries that plug into a wall outlets and move with you? Check our video: https://youtu.be/jl-rwZjdD3Y Or on our website: https://undecided.link/4uKmJ4t

🖖Calling all Star Trek fans … new Trek in Time is out: https://www.youtube.com/watch?v=vKR17zTEUik Audio: https://shows.acast.com/trek-in-time/episodes/6a32913c883f9289e90e5160 Sean and I talk about the never-ending battle for good storytelling in Star Trek TOS “Let That Be Your Last Battlefield.”

Is this battery the swiss army knife of renewable energy? Check out our video on it, here: https://www.youtube.com/watch?v=j-C7A8kmJuQ Or check out the page on our website, here: https://undecided.tech/why-this-battery-is-the-swiss-army-knife-of-renewable-energy/

Will this 3-in-1 battery be worth the trade-offs? Check out our video on it, here: https://www.youtube.com/watch?v=j-C7A8kmJuQ Or check out the page on our website, here: https://undecided.tech/why-this-battery-is-the-swiss-army-knife-of-renewable-energy/

Latest podcast is out! YouTube: https://www.youtube.com/watch?v=XbnuBbvX5_U Audio: https://shows.acast.com/still-to-be-determined/episodes/6a26b4b6454a111640d94f5f Matt sat down with Jorge Diaz Schneider to talk about their anode-less, ceramic-based SSB that doesn't swell or need pressure to work.

How can a furnace as hot as lava turn toxic mine waste into wind turbine magnets? Check out our video on it, here: https://www.youtube.com/watch?v=J3afhsZQuVM Or check out the page on our website, here: https://undecided.tech/the-billions-were-burying-in-plain-sight/

What if America already has nearly all the rare earths it needs, without digging a single new hole? Check out our video on it, here: https://www.youtube.com/watch?v=J3afhsZQuVM Or check out the page on our website, here: https://undecided.tech/the-billions-were-burying-in-plain-sight/

🖖Calling all Star Trek fans … new Trek in Time episode is out on my other channel: https://youtu.be/-yBtTZKZ0LA Audio: https://shows.acast.com/trek-in-time/episodes/6a12fdc0163f100183b685e9. We talk about more pulp, but not as well aged, in Star Trek TOS Season 3, Episode 17, “That Which Survives.”

Most lithium-ion batteries tap out after a few hours. This one just hit 100. The catch? The core tech was originally designed to keep astronauts alive on Mars. New video on it, here: https://www.youtube.com/watch?v=rAduhmW5ZO8 Website post: https://undecided.link/49fpUcD

Latest follow-up podcast is out! YouTube: https://youtu.be/0bw2IU73RG4. Audio: https://shows.acast.com/still-to-be-determined/episodes/6a12f4a855b99c7f89868459. We talk to Dave Borlace from the channel Just Have a Think to discuss the state of the renewable energy transition in the UK and the US.

NASA built tech to make oxygen on Mars. A former NASA engineer just used the same process to build a 100-hour battery here on Earth. New video on it, here: https://www.youtube.com/watch?v=rAduhmW5ZO8 Website post: https://undecided.link/49fpUcD

🖖Calling all Star Trek fans… new Trek episode is out: https://www.youtube.com/watch?v=U0qkT_2otuc Audio: https://shows.acast.com/trek-in-time/episodes/6a0c62892d6539cfe2a754bf. We talk about why straightforward, pulpy scifi is often the best, in Star Trek TOS Season 3, Episode 11, “Wink of an Eye.”

One-fifth of the world's oil just stopped moving. Who actually wins? (Hint: not who you think.) Check out our video on it: https://www.youtube.com/watch?v=xC4v9tyxNgU Or check out the page on our website, here: https://undecided.tech/what-the-iran-war-means-for-renewable-energy/

The biggest oil shock ever. Prices through the roof. But is the Iran war actually helping renewables, or hurting them? Check out our video on it: https://www.youtube.com/watch?v=xC4v9tyxNgU Or on our website: https://undecided.tech/what-the-iran-war-means-for-renewable-energy/

Check out the full interview with Zack Nelson about building a new wheelchair manufacturing business, solar DIY, and the history and future of his Youtube channel. YouTube: youtu.be/quA0gBAFEQk Audio: shows.acast.com/still-to-be-...

Latest follow-up podcast is out! YouTube: https://youtu.be/quA0gBAFEQk Audio: https://shows.acast.com/still-to-be-determined/episodes/69fa028979d314932a438a1d We talk to Zack Nelson about building a new wheelchair manufacturing business, solar DIY, and the history and future of his Youtube channel.

What examples of helpful AI have you seen? Check out our video on it, here: https://www.youtube.com/watch?v=WdxTm_Abqyg Or check out the page on our website, here: https://undecided.tech/the-surprising-ways-ai-is-actually-helping/

What do you think about AI being implemented to make streets safer? Check out our video on it, here: https://www.youtube.com/watch?v=WdxTm_Abqyg Or check out the page on our website, here: https://undecided.tech/the-surprising-ways-ai-is-actually-helping/

🖖Calling all Star Trek fans … new Trek in Time episode is out: https://youtu.be/k4iqLsXJYWY Audio: https://shows.acast.com/trek-in-time/episodes/69fc7bcc7628afabb99b537b Sean and I talk about one of the most historic episodes of Trek, Star Trek TOS Season 3, Episode 10, “Plato’s Stepchildren.”

#FunFactFriday: Solar PV and wind are now the cheapest source of power globally, with energy storage costs also falling fast. Could this be the cheap energy future we’ve been waiting for? Source: https://www.pv-tech.org/solar-pv-and-storage-cost-declines-drive-rapid-fall-in-firm-lcoe-says-irena/

#FunFactFriday: JinkoSolar have created lightweight solar panels that use a reinforced adhesive film, improving resistance to humidity, heat and microcracking. It can also weather hail, snow and wind to an impressive degree. Could these help solars spread? News Source: https://undecided.link/4ui4kMx

Latest podcast is out! YouTube: https://youtu.be/gfCZL-vwWtA Audio: https://shows.acast.com/still-to-be-determined/episodes/69f09ff9f8c66377372f3d9c We talk to Karl Rábago about the internetification of the electrical grid, and what it means for the future of owning solar panels and energy.

Would a smart heat pump water heater make sense in your home? Check out our video on it, here: https://www.youtube.com/watch?v=N-gSE_eHKHg Or check out the page on our website, here: https://undecided.tech/how-this-heat-pump-water-heater-is-also-a-battery/

What do you think about smart heat pump water heaters? Check out our video on it, here: https://www.youtube.com/watch?v=N-gSE_eHKHg Or check out the page on our website, here: https://undecided.tech/how-this-heat-pump-water-heater-is-also-a-battery/

🖖Calling all Star Trek fans … new Trek in Time episode is out: https://youtu.be/3tNbHklGoYs Audio version: https://share.transistor.fm/s/7808b22a Sean and I talk about Oracles, Asteroids and Marriage, in Star Trek TOS Season 3, Episode 8, “For the World is Hollow, and I Have Touched the Sky”

Can we solve the ocean plastic problem? Check out our video on it, here: https://youtu.be/Rqpfnj7dAgw Or check out the page on our website, here: https://undecided.tech/how-ocean-plastic-isnt-the-problem/

Do you think capturing plastics from rivers is a good solution? Check out our video on it, here: https://youtu.be/Rqpfnj7dAgw Or check out the page on our website, here: https://undecided.tech/how-ocean-plastic-isnt-the-problem/

🖖Calling all Star Trek fans … new Trek in Time video episode is out on my other channel: https://youtu.be/JgJ9kUYSTrk Audio version: https://share.transistor.fm/s/9db1b945 Sean and I talk about rips in space, space madness, and Tholians, in Star Trek TOS Season 3, Episode 9, “The Tholian Web.”

Will sCO2 generators replace steam power? Check out our video on it, here: https://youtu.be/TboSBAnmJKI Or check out the page on our website, here: https://undecided.tech/why-chinas-supercritical-co₂-turbine-matters/

#FunFactFriday: Scientists have broken convention with a handheld gaming device that requires you to play outside! Are solar panels and hand-cranks the future of gaming? Are gamers the next renewable energy? Source: https://techxplore.com/news/2026-04-green-technology-game-industry-scientists.html

Do you think sCO2 could have an impact? Check out our video on it, here: https://youtu.be/TboSBAnmJKI Or check out the page on our website, here: https://undecided.tech/why-chinas-supercritical-co₂-turbine-matters/

Latest follow-up podcast is out! YouTube: https://youtu.be/nR8qn3cD1jQ Audio version: https://share.transistor.fm/s/5a57a1be Sean and I talk to Nona Yehia (Vertical Harvest) about vertical farming, technological “growth”, and the future of food.

🎙️ Just published a new episode of Still To Be Determined: 302: The Future of Food with Nona Yehia. Have a listen:

🖖Calling all Star Trek fans … new Trek in Time video episode is out on my other channel: https://youtu.be/NFX_zA9iHMI Audio version: https://share.transistor.fm/s/4a7741fd Sean and I talk about feeling the vibes and torturous experiments, in Star Trek TOS Season 3, Episode 12, “The Empath.”

FunFactFriday: The gap between used EVs and equivalent gas cars is closing fast, and sales of these EVs is rising fast, with 37000 sold in the first quarter of the year. Are you part of the EV wave? Source: https://electrek.co/2026/04/07/used-evs-just-hit-a-sales-record-a-much-bigger-wave-is-coming/

What went so wrong with the national grid? Check out our video on it, here: https://youtu.be/pLIatO-RA1c Or check out the page on our website, here: https://undecided.tech/the-national-grid-is-dead-heres-what-replaces-it/

Anthropic's Mythos Preview is not a publicity stunt, and sources say tech companies privately spoke to Trump officials about the implications for US security (Thomas L. Friedman/New York Times) Main Link | Techmeme Permalink

One hopes images like this, when paired with the knowledge that everything we burn ends up in that tiny slice of gasses, would help contextualize why we need to move away from energy sources we set on fire. One hopes. Climate communicators should make some hay of this.

Are you team DER or team "leave things as they are"? Check out our video on it, here: https://youtu.be/pLIatO-RA1c Or check out the page on our website, here: https://undecided.tech/the-national-grid-is-dead-heres-what-replaces-it/

🖖Calling all Star Trek fans … new Trek in Time video episode is out on my other channel: https://youtu.be/KIXnP7lp690 Audio version: https://share.transistor.fm/s/f829a96f Sean and I talk about where ugliness truly dwells, in Star Trek TOS Season 3, Episode 5, “Is There No Truth in Beauty.”

#FunFactFriday: TNO believe they have made the world’s first flexible perovskite solar roof tile, with an efficiency of 12.4%. Could this change our approach to solar energy? Would you have a full solar roof? News Source: https://www.pv-tech.org/tno-claims-worlds-first-perovskite-solar-roof-tile/

Latest follow-up podcast is out! YouTube: https://youtu.be/HicyIaKqRgk Audio version: https://share.transistor.fm/s/4e468567 Matt talks with Two Bit Da Vinci and Ziroth about Donut Lab’s new battery, the controversy around it, and what they think it actually might be.

Would you like to see vertical farming in your community? Check out our video on it, here: https://youtu.be/8sOEB2m0m9Y Or check out the page on our website, here: https://undecided.tech/why-this-vertical-farm-is-500x-more-efficient-than-farming/

🎙️ Just published a new episode of Still To Be Determined: 301: Talking Donuts & Batteries with Ricky Roy and Ryan Inis Hughes. Have a listen:

What do you think about vertical farming? Check out our video on it, here: https://youtu.be/8sOEB2m0m9Y Or check out the page on our website, here: https://undecided.tech/why-this-vertical-farm-is-500x-more-efficient-than-farming/