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Comment Re:Really? (Score 3, Interesting) 302

It doesn't have to be of unlimited length. In Outlook/Exchange, at least, it's possible to have a distribution group that is handled by the server, so including the group name in the To: (or CC: or BCC:) field will send it to everyone in that group, no matter how big. My organization has a #Everyone group that does actually go to everyone. I don't know if #Everyone is protected, but there are certainly some very large distribution groups- around 1/3 of the organization- that anyone is allowed to send to.

Comment Re:Trust but verify (Score 2) 90

The problem is that Google isn't manufacturing all those phones, chargers, and cables. It's not clear how much power they have to enforce standard compliance even among Android vendors, much less among people selling third party accessories like chargers and cables. And it's really hard for the phone to check standard compliance for those third party devices. OTOH, Google does have at least one engineer whose job seems to be testing third party USB type-C cables for standards compliance and posting on-line reviews with his results. They know they'll take the blame if customers damage their devices with cheap, non-compliant third-party devices, so they put the knowledge out there so nobody can claim ignorance.

Comment Re: Totally the right call (Score 1) 90

I don't think anyone is going to try charging a cell phone battery at 100W; that's so laptops can use a USB type-C connector for both power and connecting to peripherals. If you tried to use 100W to charge a tiny cell phone battery, you might very well put enough heat into the battery to get it to blow up, regardless of what cable you were using. I don't think any of the rapid chargers are drawing more than about 20 W.

Comment Re:Airport charging (Score 1) 72

Why add lots of charging stations at airports? When people are leaving their cars for multiple days, they don't need a 240v charger or anything fancy.

There's a lot of short-term parking at airports, too. There is a surprising amount of one day travel- fly out in the morning and back in the evening- that would benefit. And a lot of people who are flying for longer times don't want to park their car at the airport and pay for multiple days of parking, so they have somebody drop them off and pick them up. Short-term parking may make more sense in that case than driving around the airport, especially for pickups when there's some time uncertainty. If I had an electric car with some range questions, I would certainly want to park and charge while waiting.

Comment Re:Impressive (Score 1) 74

You don't even need a protective suit, just a gas mask.

The catch is that to live like this on Venus, you have to live in a giant dirigible or "floating city". The conditions on the surface are hellish, but several kilometers high in the atmosphere, it's actually quite nice.

Actually, you will need more protective gear than just a gas mask. The temperature and pressure may be tolerable, but the atmosphere is full of sulfuric acid, and there are constant hurricane-force winds. I guess you could live there in a floating city if you could build one that would survive the environment- better be very confident in your design if you plan on living there- and you never wanted to go outside. But why bother?

Comment Re:paying dividends is dumb (Score 3, Insightful) 103

US corporations also pay some of the highest taxes in the world, which is why many of them are moving overseas.

More accurately, the US has one of the highest nominal corporate tax rates in the world, which is why US corporations work so hard to exploit (and lobby to create) the many loopholes in the system. The US corporate tax system is an excellent example of a case where it would be far better to lower the tax rate and broaden the tax base by eliminating loopholes.

Comment Re:Before the inevitable comments (Score 1) 74

The treatment was done 13 years ago, I didn't think they were gene editing back then so I assume they come from donors? Does that mean they require immunosuppressant drugs?

They do come from donors, and immunosuppressive drugs are not required. Transplants of tissue from living donors like bone marrow is very different from tissue from deceased donors like hearts and lungs. With transplants from deceased donors, the pool of donors is small and there's very little time to choose a recipient before the organ goes bad. In practice, that means it isn't always a very good tissue match, and it's usually necessary to give the recipient immunosuppressive drugs to avoid rejection.

With a transplant from a live donor, the pool of donors is larger- much larger in the case of hematopoetic stem cells or bone marrow, which grow back completely- and the tissue will keep indefinitely. That gives doctors plenty of time to search for the closest possible tissue type match, so the recipient and donor are generally perfect or nearly perfect matches. They won't even try to do the transplant unless there's a very close match.

Comment They're all BS (Score 1) 100

All of the studies purporting to show cancer risk from cellphones are BS. How do we know? Because cellphone use has skyrocketed worldwide in the past 20-30 years with no corresponding increase in brain cancer in humans. It's not a perfectly designed study, but I'm going to trust the natural experiment that's been performed on billions of humans over decades of time rather than the lab experiment that's been carried out on a handful of rats for a much shorter time.

Comment Re:How many digits to use (Score 3, Informative) 174

I don't think so. The normal standard for a mirror is 1/4 the wavelength of the light it's supposed to be reflecting, or around 100 nm. Even ultra-high precision mirrors like the ones on the Hubble Space Telescope are only ground to within about 10 nm. A 10 nm error on a mirror 100m in diameter- far larger than any mirror currently under construction- is still only 1 part in 10^10, far lower precision than what you're talking about. Unless you're building a mirror the size of a planet, you aren't going to need more than 15 digits of precision.

Comment Re:Good for consumers? (Score 1) 77

Battery usage depends on the chipset, with newer chipsets using less power. For example, I've had a misbehaving app leave on the GPS on my Nexus 5X, and I still got battery life of about 8 hours. That's not good battery life, but the power consumption was low enough that I didn't notice the phone heating up in my pocket, and I was able to get through a day at work before it went into power saving mode.

My impression is that the real killer with the map app is screen usage. If you leave the map in the foreground, it will leave the screen on, and that drains power like crazy. Even if you hit the power button to turn the screen off, it will keep updating what it's showing on the screen, and that will continue to eat a lot of power. You can save a lot of power by going back to the home screen or another app, which lets you get voice prompts but avoids the power drain from the screen rendering.

Comment Re:Consumables (Score 2) 49

It shouldn't be that surprising to see water and methane everywhere. After all, hydrogen is by far the most common element in the universe, and oxygen and carbon are also relatively common. Simple compounds of heavier elements with hydrogen should be among the most common things to see on planets (and dwarf planets and moons) that don't have strong enough gravity to keep hydrogen in their atmosphere.

Comment Re:Great! (Score 1) 338

If you want an incandescent that lasts really long, you need one sealed with a noble or inert gas (pure nitrogen might work on the cheap)

Not necessarily! Halogen lamps work by enclosing the filament with a reactive gas rather than an inert one. The halogen in the lamp reacts to form tungsten compounds that are stable at the lower temperatures near the glass of the bulb but decompose to tungsten and halogen at the higher temperatures near the filament. That design scavenges tungsten that sublimes from the filament and deposits on the bulb, minimizing filament erosion.

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