I've seen vintage hit-and-miss tractors in action. Well over 100 years old - something to be said about simplicity = reliability.

The key is only needed to unlock the door and press the "start" button inside. At least with Honda (not sure of others), the car will only start beeping when the key gets out of range, it won't turn off or anything (probably for safety reasons).
Also with Honda, you have to press your foot on the brake in order for the start button to work. I have seen other makes where this is not required.

I would assume that if these thieves have the tech to create the relay boxes, they also have to the tech to reprogram replacement keys for the stolen vehicle (otherwise how will they sell it on? unless it's just parted out)

upvote for last few seconds "these are turn signals" PSA.

I liked the SmartEveryDay parody best... "I may be just a simple rocket engineer". Vsauce was good in writing style, but didn't quite have the voice down.

I've been to that monument, it's really hard to tell the scale from this video, it's much larger in person. A lot of steps to the top.

As the former owner of a DLP rear projection TV, I can say that the Ti DLP chips will not last 11 years before some of the tiny mirror elements begin to fail (on a TV, it would show up as a stuck-on white pixel).

Here's another one - make it illegal for a Health Insurance company to own hospitals (some own many many hospitals).

Prices aren't going to go down until they have lower priced competition - i.e. single-payer "public option". Maybe in another 3.5 years it might be possible, but not anytime soon.

I could see this being much safer (and therefore more viable) than the Hyperloop.

Although I'm curious how it could ever be more efficient than just using an electric train.

As far as non-standard trains climbing steep grades, "cog railways" have existed over 150 years. (these aren't cable-pulled funiculars)

I don't see nuclear having a renaissance anytime soon...
Solar and Wind are already cheaper, don't emit CO2, and don't produce nuclear waste that has to be transported and stored in exotic containers for thousands of generations.

Thorium salt reactors also produce waste.

Nuclear does make a useful energy source for NASA space probes though.

I remember having to buy new edition Calculus book ($100+) because they switched the texts between calc 2 and calc 3. Wasn't this shit invented 400 years ago? Did I really need a new book with slightly different questions? apparently so.
Meanwhile the author (Stewart) lives in a multi-million dollar ocean-front mansion on the west coast.

Fun fact: the Indian government regulates textbook costs, and even though the editions sold there are paperback only and lower-quality print, they are <1/10th the cost of western-published books with identical content. (It's illegal to export them out of India though.) Isn't it nice when a democracy works for the people rather than for corporations?