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Rocket

rocket

1. An artificial firework consisting of a cylindrical case of paper or metal filled with a composition of combustible ingredients, as niter, charcoal, and sulphur, and fastened to a guiding stick. The rocket is projected through the air by the force arising from the expansion of the gases liberated by combustion of the composition. Rockets are used as projectiles for various purposes, for signals, and also for pyrotechnic display.

2. A blunt lance head used in the joust. Congreve rocket, a powerful form of rocket for use in war, invented by Sir William Congreve. It may be used either in the field or for bombardment; in the former case, it is armed with shells or case shot; in the latter, with a combustible material inclosed in a metallic case, which is inextinguishable when kindled, and scatters its fire on every side.

Origin: It. Rocchetta, fr. Rocca a distaff, of German origin. Named from the resemblance in shape to a distaff. See Rock a distaff.

(Science: botany) A cruciferous plant (eruca sativa) sometimes eaten in Europe as a salad.

(Science: botany) A common cruciferous weed with yellow flowers (Barbarea vulgaris).

Origin: F. Roquette (cf. Sp. Ruqueta, It ruchetta), fr. L. Eruca.


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Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... it. For example, can you identify any intellectually difficult activity that one race can perform that other race cannot perform? Brain surgery? Rocket science? Quantum physics? Or do you have evidence that some races are lacking in intelligence genes that other races have in greater abundance? ...

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by Seth90210
Sat Oct 26, 2013 7:38 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 263523

Re:

I just find the title of this thread hilarious. It would be like asking, "Is rocket science as simple as we think?!" Admittedly, evolution is, at its heart, a deceptively simple idea, but the implications are endlessly complex and fascinating. You're right ...

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by thoffnagle
Thu Jun 27, 2013 6:28 pm
 
Forum: Evolution
Topic: Is evolution as simple as we think?
Replies: 38
Views: 22305

Is evolution as simple as we think?

I just find the title of this thread hilarious. It would be like asking, "Is rocket science as simple as we think?!" Admittedly, evolution is, at its heart, a deceptively simple idea, but the implications are endlessly complex and fascinating.

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by Luxorien
Sat Jun 15, 2013 8:02 am
 
Forum: Evolution
Topic: Is evolution as simple as we think?
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Views: 22305

Anyone have any good diet tips/plans

Sadly, I think you'll find the most effective method is to eat less and exercise more. Not rocket science. Or even advanced biology! All the best - greed and laziness are never easy to overcome!

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by Julie5
Wed Dec 15, 2010 10:46 am
 
Forum: Physiology
Topic: Anyone have any good diet tips/plans
Replies: 9
Views: 12318

Re: Re:

... more quickly (your heart rate and blood flow increases) which also causes movement, which also causes heat. Your grandmother is right. It's not rocket science!

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by TheVirus
Wed Nov 18, 2009 7:40 pm
 
Forum: General Discussion
Topic: cold and excersize
Replies: 17
Views: 4836
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