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Comment: Re:led costs $22????? (Score 3, Informative) 131

by Moridineas (#49363833) Attached to: Graphene Light Bulbs Coming To Stores Soon

I just made another post about this, but I have about about 15-16 cree bulbs in my house. I take a picture of the receipt and the packaging at the time of every purchase.

I've had trouble with two--both 40W TW series bulbs. These bulbs flickered--they would turn off and if I adjusted--or even tapped on the bulb--the bulb would come back on for a time. The problem got worse until they barely worked anymore. I thought it was the fixture until I tried one of the bad bulbs in a desk lamp and had the same issue.

Anyway, I emailed Cree tech support with the photo of the receipt and packaging and had 3 new bulbs fedexed to me two days later.

I'm annoyed by the quality lapse (less than a year), but I don't have any problems with their response.

Comment: Re:okay, but LED bulbs are nowhere near $22/ea (Score 4, Interesting) 131

by Moridineas (#49363811) Attached to: Graphene Light Bulbs Coming To Stores Soon

Hmmm, interesting. I've upgraded almost my entire house to Cree bulbs over the last two years. I had one fixture that had three 40W TW (high CRI) bulbs--the only 40W crees I've used--that were all bought at the same time. Two of the bulbs died within a week of each other--they flicker off and if you tap them will turn back on. I'm assuming some solder or some other connection has weakened. I'm going to try to fix them, but that's neither here nor there.

I emailed Cree support with a picture of my receipt and a picture of the original packaging (taken at the time I purchased them). Cree immediately offered to Fedex me three new bulbs (including a replacement for the third bulb) and did not even ask for me to send the old bulbs back. I had new bulbs two days later.

I'm disappointed that the bulbs didn't last that long, but I couldn't ask for any better response out of Cree's support.

Comment: Re:Bad name (Score 4, Informative) 166

by CrimsonAvenger (#49361877) Attached to: Commercial Flamethrower Successfully Crowdfunded

A flamethrower is primarily useful for clearing bunkers.
Squirt a jet of flame through the firing slit on a concrete bunker, and it quickly ceases to be a threat to the guys on the outside.

Like a demolition charge, it's utility is pretty limited, but when the right (or wrong, depending on perspective) situation comes up, there's no substitute....

Comment: Re:He's good. (Score 1) 175

by CrimsonAvenger (#49361653) Attached to: Prison Inmate Emails His Own Release Instructions To the Prison

Interesting that you'd pick those names. A quick google for wealth of US Presidents (adjusted for inflation), puts Bush at 15 (the elder) or 17 (the younger).

And this is as opposed to, say, John Kennedy (1), Lyndon Johnson (7), FDR (9), Clinton (10), who all have that peculiar D after their name.

And note that Obama is #21. Hardly poor by any definition of the term....

Note that I ignored the rest of the top 10 because they served far enough back that the Party they were part of had no real similarities to the current version of the Parties of the same name (once upon a time, the Republicans were the anti-slavery Party, not the Democrats, for instance).

Comment: Re:Time to stock up on shotgun shells (Score 1) 76

by Pharmboy (#49361329) Attached to: How long until our skies are filled with drones?

That is silly. A falling bullet has a much lower speed than one that was just shot. I've been hit by shotgun pellets at the end of their range, it was like having gravel slung at you.

A returning bullet CAN hit someone, and possibly injure them if everything is lined up right, or there is a very low angle of fire, but they have a small fraction of the energy they had in the first km after being fired.

Comment: Re:Stars collision rarity (Score 4, Informative) 214

by CrimsonAvenger (#49358611) Attached to: Dark Matter Is Even More of a Mystery Than Expected

What I find more interesting is why stars rarely collide?

Too much empty space.


Consider that for two stars to hit each other, they essentially have to pass within one stellar diameter of each other (absent gravity, but they're moving at over escape speed relative to each other, so gravity won't enlarge that distance a whole hell of a lot).

So, one stellar diameter is ~1.4 Gm for Sol. Nearest star is 40,000,000 Gm away. If that nearest star were headed toward us (it's not), it's course would have to be within 0.01 seconds of arc of our Sun in order to actually hit it.

And stars farther away have an even smaller course window to be in to smack us....

Comment: Re:"to provide support for the cultural sector" (Score 2) 234

What you describe is pretty much the way the US was originally intended to be. The Feds handle standards (like weights and measures) and foreign policy, pretty much everything else handled at the level of the individual States.

Alas, the Feds have been working hard to move every decision to Washington for a long time now, whether it makes sense to do so or not....

Comment: Re:Reminds me of one thing (Score 1) 727

by IamTheRealMike (#49352757) Attached to: Germanwings Plane Crash Was No Accident

Because then everyone dies when the computer fails. Autopilots regularly fail and expect the pilot to take over

I think this depends on your definition of "fail". As far as I know true computer failures where the machine just goes crazy and tries to crash the plane are non-existent. What happens more regularly is the autopilot sees that something weird is happening and chooses to disengage itself - presumably an autopilot program could be written that never disengages and always does the best it can to fly the plane, unless deliberately disengaged.

This is particularly problematic when sensors fail, as they did in AF447, and the computer doesn't know what's going on any more.

No, this is irrelevant. If the planes sensors completely fail then the pilot doesn't know what's going on either, and the plane is probably doomed no matter what. In normal operation these planes are flying in a very small speed corridor between disintegration and stalling. If you don't know how fast your going a stall or overspeed is pretty much inevitable, and if you don't know how high you are even basic visibility problems can cause a crash into the surface. Neither human nor computer can succeed in such a situation.

Is your job running? You'd better go catch it!