brianorca

In AC, diodes work half the time, every 1/60 second. The “good” LEDs will have circuitry to fully rectify the AC into DC, drop the voltage properly, and smooth the peaks and valleys, so they will be continuously lit. So the cheap LED Christmas lights might have a slight flicker, and the good ones are steady. (Or get fancy with chasing colors, etc.)

All of that happens inside each of the “bulb” enclosures, or sometimes in a box at one end, so it technically doesn’t matter which end they are getting electricity from, since the socket at the far end is still just connected in parallel to the plug at the near end. (Otherwise you wouldn’t be able to link them together.)

It’s just a really bad dangerous idea to reverse them.

It’s also checking your other traffic. (Since Cloudflare handles traffic for so many companies.) Are you visiting other sites in a realistic fashion, or are you doing 99% of your traffic trying to do one thing over and over.

Others mention the mouse motion, and monitoring your other traffic to similar sites. When it shows the checkbox, it has already determined you are probably human. If you had suspicious activity, they will give you more advanced tests instead of just a checkbox.

It would still work. But it is VERY dangerous. 1. The far end of the light string will now have exposed metal prongs that are energized at 120v, which can be fatal. 2. If the other end gets plugged into a socket, there is a 50% chance it will be a different circuit on a different phase, which can create a 240v direct short, across a wire that has no properly sized circuit breaker. 3. Using it to plug a generator into your house during a power outage can kill electrical workers trying to fix the outage if you fail to open your circuit breakers.

If someone can’t make the own cord, what’s the chance they know how vital it is to flip the breaker?

Two things: 1: there’s a high chance you do cross live and neutral, or even live and live on different phases. 2: using it to plug in a generator to power your house can kill electrical workers who are trying to restore a power outage. (If you fail to open your circuit breaker.)

It also falls off too easily. My favorite for this use case is black Gorilla tape. Like duct tape but thicker.

My guess is that’s how high it needs to be for the sewer to flow in the right direction.

Because most of what you look at in real life is mundane. But go find a nice sunset or a green forest, and you can appreciate it. When you see a scene in HD or 3D on the screen, there is a heavy selection bias to show you pleasant scenes that most people seldom see in real life. If it was super 4k and 3D, but it was just your same living room you see every day, it would be uninteresting. But the same camera showing a living room in a 10 million dollar house would be interesting. (And the natural views outside even more so, most likely.)

Because bits are not expensive anymore, and if we used 64 bits, we might run out faster than the time needed to convert to a new standard. (After all, IPv4 is still around 26 years after IPv6 was drafted.) Also see the other notes about how networks get segmented in non-optimal ways. It’s a good thing to not have to worry about address space when designing your network.

SQL

USB PD (Power Delivery) actually does use a higher voltage for more wattage. Standard USB is limited to 5V at 0.5A and sometimes up to 5V @ 2A on quick chargers. But PD chargers can give 20V and 3A for 60w or even 5A (100w) with properly rated cables. There’s even a proposal for up to 48V at 5A to get 240w. This is all determined by a negotiation between the charger, the cable (which does have a small chip for this purpose), and the device, therefore PD chargers must support multiple voltages.

Seems like a Hancock move.

Replace NT in this list with ME and you have all the consumer versions. NT versions 3.5 and 4 were the business versions in parallel with 95, 98, and ME.

Funny, I was reading the post while my gardener was outside. At least they don’t stay long.

Also note that before this switch, years were often designated in relation to the founding of a city or by the start of a ruler’s reign. There were always ordinal numbers, so the first year of a reign would be year 1, and there was never a zero, because it was year X of a previous reign.

The guy that invented time zones was solving a problem where each little town had their own time standard. I don’t think that was sustainable.

It’s also the only way that is portable. A professor could evaluate each student, but has no way to transmit that kind of evaluation in a way that schools or employers across the country would trust. They didn’t know who the professor is, or what his standards are, or even if he is being bribed to pass somebody. (Which would happen much more if the professors opinion had the weight that the standardized test does. )

The skin of that cowling doesn’t look thick enough to do more than streamlining. You’re thinking of the containment ring found in jet engines.

Not zero reason. Some people with certain disabilities could benefit from such a device. (Stephen Hawking for instance, was limited to about 10 words per minute with his button interface. A brain interface on a similar patient could be closer to normal conversion speed.)