No, the blockchain isn't a voting mechanism. It's a ledger where every new item added needs some effort and the longer something's been in the ledger the harder it gets to fake. This is a very useful mechanism for establishing order of events and origins. Backdating something is essentially impossible. Is there some forms of voting going on? yes but only in regards to new content. Once somethings is added everyone has to agree or the network splits. This mechanism could absolutely be used to combat fake news, it's not a complete solution by any means but at least you can catch the low hanging fruit and frankly that's mostly where the news trolls lives anyway. With a clever blockchain you could easily mark doctored photos with references to earlier originals making it fairly obvious that the entity that submitted the doctored photo didn't act in good faith.

Where this will become economical first is in trainer aircraft, I think. Many flights per day but mostly just going around the field taking off and landing.

Airframes absolutely live for decades. There are a lot of small general aviation craft that have flown since the 70s and earlier. My club has 2 piper warriors that are from the 70s and they are still very much active. But it's also standard in aviation to completely replace engines and other large components after they reach their end of life hour count. So switching out batterypacks shouldn't really be an issue unless they wear out too quickly, especially if it saves you having to rebuild the engine which is something that's quite expensive and has to be done regularly.

AMD seems to not have the meltdown vulnerability but they still have some issues with the spectre type attacks. Although as far as I can tell the problems are a lot less serious on the AMD side and it was less of a performance hit to patch them up.

I have used Hilti Hit epoxy to inject rebar into concrete during bridge renovations. Since we weren't sure how healthy the outer layers of the concrete was we set up some hydraulic jacks to test a couple of the injected rods. In all cases the rods snapped well before the the epoxy lost its grip. And this was in wet and cold conditions. If you follow the manufacturer's procedures these kinds of fasteners will absolutely not be the failure point.

For me it's more of a skill test. When my kids are knowledgeable enough to bypass my parental control systems they are ready to access whatever content they want. As a techie kid with oblivious parents I've had access to whatever the internet can throw at me for decades and I see no reason why my offspring would be irreparably damaged by doing the same. A parents job is to teach their children how to live in the world not protect them from it.

Every single bike helmet is single use. You should absolutely not use any kind of helmet after it has been in an accident where it was hit with force. If the Hövding is triggered falsely (and it was common with 1.0, less common with 2.0) you get a new one from Hövding if you weren't doing something stupid like having it activated while you weren't riding a bike. Do you actually think helmets that have hit the ground in a bike accident should be reusable?

This is 15 hours of active biking. When it's off the battery lasts for months. Which is kinda the point. It isn't a phone battery it's a battery constructed for long life in outdoor conditions. I had a Hövding 2.0 helmet and I only had to charge it once every week at most, granted I'm not commuting with my bike or anything. Now for the chin protection this helmet competes with bicycle helmets and they do not have any chin protection, in fact due to the way the helmet goes a bit past your head on deployment it would likely work a lot better than standard bike helmets anyway. The Hövding helmet is only for biking and using it in any other circumstance will likely result in unsatisfactory results. Also the reason I say I had one was because it deployed when I took a fall a month or so ago. Really weird feeling of hearing a distant pop and then having your neck stiffly wrapped and your head inside a white fluffy balloon. I will absolutely get the new one just as soon as my insurance company stops messing up my claim.

Labor laws has to be all encompassing otherwise they lose all effectiveness. If one company can completely disregard all legislation due to it being "revenue sharing" or "quid-pro-quo transactions" then the system will break. Suddenly taxis are revenue sharing, delivery jobs are revenue sharing and so on. YouTube/Google aren't sharing the revenue. They depend upon content created by Youtubers to draw the eyes of consumers. Some outfits are drawing massive crowds to the plattform. I don't personally think they have an employer-employee relation at all but there absolutely need to be better tools and clearer laws in place to prevent abuse. Some of the draconian copyright stuff that has happened, like people losing access to their channels due to songs they have made themselves and so on is just completely unacceptable. Google isn't responsible for the tubers livelihood but if their tools allow others to cause thousands of dollars in lost revenue they have a responsibility to be transparent.

I have been forced to chew car-sickness gum in order to play some fps games. It made me feel weird but it was worth it.

That's why the current focus is on low persistence screens. They never "hold" the frame while they wait for the next. so the effect is a lowered brightness but the image is only shown while its actually correct leaving the brain to fill in the gaps. I haven't experienced it myself but apparently it solves many of the nausea problems. You need to get up to above 90 fps though,

How in earth do they motivate a subscription model for a service that isn't using the cloud? The whole point of Sync is that it's supposed to only involve your own machines. I have been looking into using sync at work as the Dropbox-possibly-giving-all-your-files-to-the-NSA thing isn't really a good alternative but with Dropbox I atleast get some good cloud backup. Now $40 isn't a lot of money for the intended audience for sure but it implies a lot of DRM/payment processor/Obsoleteness issues down the road. Are there any mature open source projects that are trying to make personal cloud storage?

D0nM@tt1ngly! is NOT a good password

Well as the average gamer age is now 31 you would have to seriously redefine the word "grownup" to exclude people who play FPS.

well if you don't broadcast then you won't get any confirmations and the exchange won't accept your transfer. AFAIK the double spend 51%+ attack is where you make an ordinary transaction let it confirm and then build your own blockchainfork that doesn't have this transaction and since your private chain is built faster than the regular chain you can then release your chain and it would supercede the public as it is longer. But you have to get away with the money/goods before this and it's very very expensive in processor time, so you have to get away with millions for it to be worth it. And most exchanges do have enough of a delay for this approach to be unfeasible.