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Comment: Re:Conservation of momentum (Score 1) 459

by drinkypoo (#49616171) Attached to: New Test Supports NASA's Controversial EM Drive

The EmDrive uses a sealed cavity. There's nowhere for any propellant to come out, even if there were any!

sure, the only thing it could do if it remained sealed would be emit black body radiation, and the whole reason this report is interesting is that it's apparently moving a lot more than you'd get from such a result. well, perhaps it could offgas, that's been mentioned elsewhere.

Comment: Re:Conservation of momentum (Score 1) 459

by drinkypoo (#49616153) Attached to: New Test Supports NASA's Controversial EM Drive

I totally understand what you're saying, and I agree entirely, except when it comes to conservation of momentum. It's a simple concept that is necessary for this Universe to make any sense and be stable in any way.

Not really. There may be well-defined circumstances in which it can be violated, which rarely occur in the "natural" order of things. In theory, planets can make their own functional electronic circuits through ordinary volcanic and geologic processes, in practice... 42, I guess. It has long been observed that the laws of physics seem to break down at very high and very low energy states. If they behave themselves at most other times, then most things will behave in a way that is highly predictable at most times.

Comment: Re:Facebook is G+'s best advertising (Score 1) 50

An honest question - what is different about G+'s interface or paradigm (compared to Facebook) that gets people to post content that makes you like them more?

I'm not really sure. Somehow G+ seems more oriented towards seeing stuff from disparate sources. I just find more stuff to reshare.

Comment: Re:Wait a minute... (Score 1) 317

by LordLimecat (#49613105) Attached to: Mozilla Begins To Move Towards HTTPS-Only Web

Im not sure if you're familiar with certificate pinning, but in any case I can assure you they have not been doing this on a wide scale, and it is nowhere near as easy as you think.

To properly intercept HTTPS, you need to know the URL-- not just the IP-- being visited. DNS can be cached, which means sometimes the MITM ISP cant know what the URL is they need to forge a certificate for.

It could be done, but would generate a ton of red flags and everyone would hear about it.

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