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Comment Re:Really? (Score 1) 505

If you knew anything about quads, you wouldn't make the mistake thinking that a $1.8k drone relies solely on GPS (even a redundant one) to determine altimetry.

To be able to keep the same altitude (i.e. fixed point hovering), one needs augmentation via altimeters and/or active radar techniques (optical or ultrasound).

Comment Re:Really? (Score 3, Interesting) 505

And you believe this? Even with good shotshell and a patterned gun, it's very unlikely to score a buckshot kill at more than 40-45 yards away. Hard to do for a stationary deer, impossible with a drone in the air.

The telemetry was either faked or, as an astute AC explained already, was showing the altitude at the launch point, which may be lower than the "trigger-happy" guy's backyard.

It simply doesn't pass the smell test.

Comment solar powered? (Score 1) 239

There is no way to supply a high-power appliance (such as an AirCon) directly out of a PV array. None.

The panel is always operated at a point (MPPT) where it produces the most power, but that power is highly fluctuating whenever there's a slight obstruction in the incident sunlight (clouds, stray leafs, even passing birds).

You need a DC/DC power converter feeding a battery array. Then the DC appliance can be powered from that battery pack. Overall, an expensive solution mostly due to the need of local energy storage.

Comment Re:it could... (Score 2) 148

I did it together with my (then) 9yo, after he became interested in crystals (he got as a present some sort of "crystal science" kit).

The contraption operated for 2 days, after which I messed it up trying to add some water to the solution. At that time the crystal was about 15mm long (and not really a monocrystal, as I was hoping).

The gear box is still around somewhere, gathering dust. Maybe I'll try again when the little one reaches a similar age. In the meanwhile, I learned how to do time lapse photography :-)

Comment Re:Nobody grows basil in dirt anyway.... (Score 1) 279

The thing about food quality is that it's related not only to consistency but also to taste. In the name of efficiency, high yield and uniformity, all these industrial settings are squeezing out the taste from whatever they're producing.

Heck, the hydrophonically-grown butter lettuce I'm buying from Costco tastes like sh*t compared to something grown in real garden soil.

So no, this is not quality, unless we're talking about specialty plants, such as maryjane.

Comment Re:Citizen of Belgium here (Score 1) 1307

Your balance sheet is very incomplete. Before the Marshall plan, there was another one, strictly aimed at Germany to destroy it for good. Its application *after* WW2 ended (i.e. during Peace Time) was spiteful and criminal. Only after the grim results of its application were becoming visible,did the Americans implement the Marshall plan (an umbrella of Europe reconstruction aid and just marginally aimed at Germany).

Oh, and I think that you're confusing millions and billions...

Comment Re:I hate and despise - but they should still be s (Score 1) 818

Except for some officers, virtually none of the Confederate soldiers who lost their live in battle were slave owners. The struggle was really about the right to secede, even though the political class who created the CSA had certain motives involving slavery.

It's no the fault of the flag that the asshole who committed the heinous crime in Charleston wrapped himself in it. Would you feel different about the star-spangled banner if he used it instead of the confederate flag?

Comment Re:I hate and despise - but they should still be s (Score 1) 818

It's interesting that your excellent and informative post lingers with a score of 1, while the ignorant drivel you replied to sits at a fat score 5 (Informative).

It just shows how little the present-day public knows about their own history and, arguably, the most important event that happened in US since the Revolutionary War.

"Say yur prayers, yuh flea-pickin' varmint!" -- Yosemite Sam