visibility

FortNine's tongue-in-cheek guide to why drivers fail to see motorcyclists and how riders can make themselves more visible. It touches on perception psychology, including the role of saccades.

Captain Disillusion debunks a viral Chinese invisibility cloak video while parodying popular educational channels. Along the way he explains chroma keying and green screen techniques.

A motorcycle safety video on the SMIDSY (sorry mate, I didn't see you) accident, explaining the perception and optical illusion that makes drivers fail to see riders, and how riders can spot the signs and avoid it.

Tom Scott explains why Ipley Cross in England's New Forest was one of Britain's most dangerous junctions. The angled crossroads lets a car's A-pillar hide approaching traffic and cyclists because there is no relative motion in the driver's view.

Numberphile's James Grime discusses highly composite numbers, nicknamed anti-primes, which have more factors than any smaller number, using 5040 as the central example. It touches on Plato and Ramanujan.

A one-minute night drive along Mill Ave in Tempe, Arizona, filmed to show that the crash site looked much brighter than Uber's released dashcam video suggested. It was made in response to the fatal 2018 Uber self-driving crash.

A local TV news investigation showing that many SUVs and trucks have a large blind zone directly in front, hiding children from the driver. It includes a demonstration lining kids up in front of a vehicle.

Technology Connections explains why American cars all had the same standardized sealed-beam headlights until 1957. It covers the regulations behind the design and the effect on night visibility.

Jordan Peterson's testimony at the Canadian Senate hearing on Bill C16, which added gender identity and expression to protected grounds. He argues against compelled speech.