I've been using this Chrome extension to remove annoying things like this from websites:

Click to Remove Element

Tom7 is a colleague of mine. He puts out a couple of entertaining videos every year about esoteric semi-comp-sci related stuff.

Here's the video referenced by the linked article where he discovered this shape:

Rupert's Snub Cube and other Math Holes

The heat entering your office building comes in from ALL surfaces.

The heat being expelled from your office building is concentrated at the condensers.

But it's the same amount of heat in steady-state, assuming the office is maintaining a steady temperature.

Even if the AC would have infinite efficiency (instead of typical values of 2-3), you are increasing temperature out-of-the-house by reducing temperature in-house.

Only at startup. In steady state, it is simply maintaining a temperature in the house by offsetting any heat that is entering the house from the outside. It adds no more heat to the outside than what is entering the house from outside, other than a minor amount of heat due to operating inefficiency.

Well, yes, Canada belongs to the Commonwealth of Nations, which is why King Charles has to approve every law that they try to pass.

https://en.wikipedia.org/wiki/...

To hit 1 megawatt you either need even higher voltages, or higher current- both of which require stouter cables and connectors.

Higher current requires thicker conductors to limit resistive losses and heat buildup.

Higher voltage requires insulation to prevent sparks or leakage, but that's easy to handle and doesn't require a whole lot. The wiring in your house is usually rated to handle 600v, even though it will never see more than a 240v potential difference.

The quote in the press release is "the first civil supersonic jet made in America." Which is true.

Am I the only one who has no idea what a "URL Breadcrumb" is?

All I see in my Chrome browser's URL bar is a URL.

The one place where Level 1 charging makes a lot of sense is airport parking lots.

If I'm on a week-long vacation, then a 40-hour charging time is perfectly acceptable. And the lower cost would allow the airport to install a lot more stations. Level 2 charging at airports is just overkill.

The only thing Starship might do is bring down launch costs, but you're still talking about billions of dollars here.

For something like James Webb, probably. But that's because we're so used to the "we can only afford one so over-engineer it" approach.

Starship launches should be cheap. And it can put a lot of stuff in orbit. So take the starlink approach instead of the Webb approach. Every university and college - and even community college - will be able to afford to put a small telescope in orbit that will last a year or two before the orbit degrades and it burns up in the atmosphere. Don't try to overengineer these things. Make them cheap and just launch another every few years.

For something like James Webb, Starship is large enough that it wouldn't have had to bother with that fancy mirror-origami engineering. It could have been launched as a single mirror instead. That would have greatly simplified the engineering involved. Starship is so big that the entire mass of the International Space Station would have only taken two launches to create. It's really going to be game-changing.

Is it just me who finds it hard to concentrate when standing?

I started using a "walking workstation" at work (basically, a desk with a treadmill) for an hour a day, because they have them available here and it seemed like an easy way to get a little exercise. I found it very difficult to concentrate on anything at first. But as with many things, I got used to it and now it's pretty much just as easy for me to concentrate on stuff on the walking workstation as it is sitting at my desk.

Absolutely.

Starlink isn't meant to compete with existing broadband in well-served communities. It's competitive in under-served areas. People in urban and suburban areas shouldn't bother getting it.

"Compared to the faintest astrophysical sources that we observe with LOFAR, UEMR from Starlink satellites is 10 million times brighter.

The only Starlink satellites I've ever noticed in anybody's photographs are the recently-launched trains of satellites that are still maneuvering into their final orbits. SpaceX has done a good job of keeping the albedo down once they're in a stable orbit.

So, I wonder what more noise they're gonna add.

Next, they should launch telescopes.

Once Starship is able to launch commercial payloads, it will become very cheap to put all sorts of telescopes in orbit where you no longer have to worry about atmospheric distortion and various satellites photo bombing your nighttime sky shots.

There aren't NEARLY enough non-Tesla EVs in North America (except perhaps in California) for this to cause any additional congestion at supercharging stations.

GM may have a lot of EV models now, but none of them are being produced in quantity.