practical engineering

Adam Something argues that the Hyperloop is impractical, covering the costs and engineering problems of running trains in a near vacuum compared with conventional rail and metros. The description admits some wrong numbers in the original cut.

A short, humorous critique of Helion Energy's fusion approach, framed as a response to a Real Engineering video. It covers low reactivity, neutron production, bremsstrahlung losses and diagnostics.

h3h3Productions describes how a hacker took over their phone number by getting a SIM card from T-Mobile, and gives security advice such as using a hardware key and an authenticator app.

Adam Something gives a short, tongue-in-cheek defense of Soviet-era prefab apartment blocks. He argues they offer efficient, dense housing with schools and services built nearby.

Dave Jones of EEVblog debunks the uBeam ultrasonic wireless phone charging technology and explains why it is not practical. He covers efficiency, coupling loss and safety, and responds to the founder's remarks about engineers.

Thunderf00t debunks the Fontus self-filling water bottle, arguing that pulling meaningful amounts of water from air with a small solar-powered device is thermodynamically impractical.

Thunderf00t critiques SpinLaunch, the startup that proposes flinging payloads to space with a giant centrifuge. He argues the physics and engineering do not hold up.

A UK tradesman's rant on the disadvantages of air source heat pumps, covering grants, heat pump types and whether they are worth it. He argues they are impractical for many British homes.

Louis Rossmann criticizes Apple's independent repair provider program as a PR move with invasive contract terms. He argues it does little for independent shops or customers.