sun

DIY Perks builds a realistic artificial sun for dark winters, using a powerful water-cooled LED, a satellite dish reflector for near-parallel rays, and a scattering layer to mimic the blue sky. The video explains the optics behind why most lamps do not look like sunlight and shows the build and its results.

Scott Manley uses a realistically scaled Kerbal Space Program setup to show why dropping something into the Sun is far harder than it sounds. It demonstrates the need to cancel orbital velocity.

A short first look at Dasung's 25.3-inch Paperlike 253 e-ink monitor, edited from the company's own Weibo reveal video. Price and release date were not yet known.

The original music video for Everybody's Free to Wear Sunscreen, a spoken-word piece built on Mary Schmich's 1997 column of life advice, produced by Baz Luhrmann.

A Samsung-backed viral demo that builds a fast computer from 24 256GB MLC SSDs in a RAID 0 array and shows the throughput results.

A 1991 NeXT promotional video that stages a head-to-head programming contest between a NeXT computer and a Sun workstation. It shows NeXT's interface builder and object-oriented tooling producing an application far faster than traditional UNIX development.

Linus Tech Tips reviews the Dasung Paperlike E-Ink monitor, asking whether an e-paper display makes sense as a computer monitor. The video covers its slow refresh rate, eye-comfort claims and day-to-day usability.

Sunspring is a sci-fi short film starring Thomas Middleditch. Its screenplay was written by an LSTM neural network trained on sci-fi scripts, and the team shot and edited it in 48 hours.

The official 1994 music video for Soundgarden's Black Hole Sun.

A clip from It's Always Sunny in Philadelphia season 8 in which a character argues that science is a liar and cannot be trusted.

Kurzgesagt explains stellar engines such as the Shkadov thruster and Caplan thruster, which could move the Sun and solar system across the galaxy over millions of years to avoid hazards and reach new regions.

Westwood Studios co-founder Louis Castle talks about how pathfinding was solved in Command & Conquer: Tiberian Sun, in an Ars Technica War Stories episode. It also touches on other challenges in Westwood's RTS games.

Sabine Hossenfelder explains how the greenhouse effect actually works, given that infrared is mostly absorbed low in the atmosphere already. She walks through why more CO2 still warms the surface.

Lucas Pope, creator of Return of the Obra Dinn, explains in Ars Technica's War Stories how localizing the game's logbook nearly sank the project.

A WSJ interview in which Apple's Craig Federighi explains Apple's CSAM scanning and child-safety features, including neural hashes and safety vouchers, and defends them against backlash.

Veritasium shows what the world looks like through a UV camera. It covers how pigments absorb UV, how fluorescence works, and how UV imaging reveals sunscreen effectiveness and skin damage.

Technology Connections takes apart a 1940s Sunbeam Radiant Control toaster. It senses the toast's own browning and lowers and raises it automatically using purely mechanical parts and no electronics.

Technology Connections praises a 1940s-50s Sunbeam toaster and explains what makes a toaster well designed, drawing on a vintage Sunbeam video.

A 1994 video from Knight Ridder showing a concept for a tablet newspaper with a rounded-corner rectangular touchscreen. It was reposted by Matt Novak of Paleofuture.

A short demo of Sun Microsystems' Looking Glass, a 3D desktop GUI concept for a future operating system.

Kurzgesagt examines what individuals can do about climate change, covering lesser-known carbon sources and why systemic and political change matter more than personal footprints.

A short film from Agenda Gotsch introducing syntropic agriculture and Ernst Gotsch's agroforestry methods, made for COP21. It shows degraded land regenerated into productive forest farms.

Kurzgesagt's animated take on climate change argues that, despite alarming headlines, there are real reasons for hope as technology, policy and public attitudes shift. It surveys trends and solutions while acknowledging the scale of the problem.

Mark Rober makes a plant-based burger for Bill Gates and explains why meat production strains the environment. Gates also appears and discusses his worry about steel and cement.

Engineering Explained works through whether electric cars are really worse for the environment than gasoline cars. It covers battery production emissions, the electricity mix used to charge, and how long an EV takes to break even on lifetime emissions.

David MacKay's TEDxWarwick talk uses basic arithmetic to show how much land and energy renewables would need to power a country like the UK. It explains the limits of sustainable options and why they should still be pursued.

Climate Town gives a comedic, fast-paced account of how the plastics industry promoted recycling, including the resin-code recycling symbol, while knowing most plastic could not be economically recycled. It points viewers to the Frontline documentary Plastic Wars for a deeper treatment.

Michael Shellenberger argues in a TEDx talk that solar and wind need huge amounts of land and mining, and says nuclear power is a better path to protecting both the climate and nature.

A Daily Show with Jon Stewart segment from 2014 covering the People's Climate March in New York and a House science committee struggling with basic global warming facts. It mixes satire with an argument against climate denial.

Climate Town tells the history of the period when the greenhouse effect was not politically controversial and the US came close to acting on climate. It covers Exxon's early climate science and the policy failures that followed.

A 20-minute S3 episode touring Terraform Industries, a startup making synthetic natural gas from air and solar power. It walks through the reactor, injection system, direct air capture and electrolyzer, plus the company's cost goals and next milestone.

Kurzgesagt examines who is responsible for climate change, comparing historical, current and per-capita emissions by country. It argues that individual footprints are a distraction from larger responsibility.

Tony Heller presents a short video arguing that climate science relies on data truncation, cherry-picking and selective presentation of statistics. It is a one-sided polemic against mainstream climate claims.

A short Last Week Tonight segment where John Oliver stages a statistically representative climate debate, with Bill Nye facing a crowd of dissenters. It satirizes false balance in media coverage.

Climate Town's comedic explainer on carbon offsets and whether companies can buy their way out of climate change. It argues that offsets won't save us, while granting they are not bad in principle.

Engineering Explained examines new research suggesting corn ethanol in US gasoline may emit as much or more carbon than gasoline. It covers the Renewable Fuel Standard and why ethanol was assumed to be a green fuel.

Engineering Explained compares the lifecycle emissions of keeping an old car with those of buying a new, more efficient one. It weighs manufacturing emissions against emissions from driving, and covers gas versus electric cars.

Engineering Explained compares the lifetime CO2 emissions of a Toyota RAV4 Prime plug-in hybrid with a Tesla Model Y, looking at break-even mileage and whether electric cars are worse for the environment.

A satirical 'Honest Government Ad' from The Juice Media that mocks Australian carbon capture and storage policy. It lays out the fossil fuel industry's influence and the weak results of the technology in a comedic format.

Real Engineering examines whether greening the Sahara could draw down carbon and slow climate change. It concludes that the effort would be enormously costly and that changes in albedo and other effects undercut the climate benefit.