Edited by Odorskeut, 19 July 2006 - 06:44 AM.
Science quiz
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Guest_Mirai Naza
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#251
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Posted 19 July 2006 - 06:30 AM
Yes, I was thinking of Aristarchus.72. Among the four fundamental forces, three of them can be unified under a single theoretical framework, what are they? (3 points)Score Board:sum41rocksandrolls-56Eärendil- 19Pompous Pom-poms-19Odorskeut- 17Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6Mirai Naza- 5Escaler-3Simbird-3xenos219-3Kewne-2kuisanagi-2random dude-2simbot15-2lumba-1
#252
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Posted 19 July 2006 - 06:40 AM
Weak force, Strong force, and Electromagnetic are generally considered unified...leaving out Gravity.
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#253
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Posted 19 July 2006 - 06:43 AM
Correct.73. Who said at the end of 19th century something science has solved almost all world mysteries except two minor details? What are these two details and what are their consequences? (4 points)Score Board:sum41rocksandrolls-56Eärendil- 19Pompous Pom-poms-19Odorskeut- 17Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5Escaler-3Simbird-3xenos219-3Kewne-2random dude-2simbot15-2lumba-1
Edited by Odorskeut, 19 July 2006 - 06:44 AM.
#254
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Posted 22 July 2006 - 04:06 PM
Anyway bumping this, since there have been no replies for a long time, most likely nobody knows.Anyway i'll take a guess, was a some sort of medicine that they thought was good yet later turned out to have disasterous side effcts?
#255
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Posted 22 July 2006 - 05:00 PM
Not really. Any here is the answer. It was Lord Kelvin who said that science was almost cleared except two minor details: photlectric effect and black body radiation. The first one led to relativity and the second to quantic mechanics.74. What is called "red shift"? (2 points)Score Board:sum41rocksandrolls-56Eärendil- 19Pompous Pom-poms-19Odorskeut- 17Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5Escaler-3Simbird-3xenos219-3Kewne-2random dude-2simbot15-2lumba-1
#256
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Posted 22 July 2006 - 05:28 PM
Red shift phenomenon of electromagnetic waves such as light, term used in astronomey and physics 
#257
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Posted 22 July 2006 - 05:32 PM
Yes, it's the domain but what does it mean? You may answer again if you wish.
#258
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Posted 22 July 2006 - 09:41 PM
in physics and astronomy, redshift is a phenomenon in which the visible light from an object is shifted towards the red end of the spectrum. Scientifically, it is an observed increase in the wavelength and decrease in the frequency of electromagnetic radiation received by a detector compared to that emitted by the source.
#259
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Posted 23 July 2006 - 02:07 AM
Yes, basically it is that. Actually it is just a special case of the Doppler effect.75. How thick is Earth atmosphere? (1 point)Score Board:sum41rocksandrolls-56Eärendil- 19Pompous Pom-poms-19Odorskeut- 17Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5Escaler-3Simbird-3xenos219-3jpenguin=2Kewne-2random dude-2simbot15-2lumba-1
#260
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Posted 23 July 2006 - 04:04 AM
are you talking about the distance between the earth and the most outer part of the atmosphere? if so i say 31 kilometers
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#261
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Posted 23 July 2006 - 04:20 AM
Well, I had 32 km but the answer is correct.76. What is called "biosphere"? (2 points)Score Board:sum41rocksandrolls-56Eärendil- 19Pompous Pom-poms-19Odorskeut- 17Amnesiac-12aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3Simbird-3jpenguin=2Kewne-2random dude-2simbot15-2lumba-1
#262
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Posted 23 July 2006 - 04:33 AM
It's a contact area (?) between the atmosphere and Earth shell where live all the living being.
#263
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Posted 23 July 2006 - 04:39 AM
Not exactly a contact area. It's just the layer where living beings exist.77. Cite two C6 sugars and two C12 sugars. (3 points)COMMENT: C6 sugars have the general formula C6H12O6, C12 sugars have the general formula C12H22O11.Score Board:sum41rocksandrolls-56Eärendil- 19Pompous Pom-poms-19Odorskeut- 17Amnesiac-14aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3Simbird-3jpenguin=2Kewne-2random dude-2simbot15-2lumba-1
#264
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Posted 23 July 2006 - 07:18 AM
C6 are fructose and glucose and C12 are sucrose and lactose.
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#265
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Posted 23 July 2006 - 07:22 AM
Correct, another C12 is maltose also.78. What is the difference between lava and magma. (1 point)Score Board:sum41rocksandrolls-56Eärendil- 22Pompous Pom-poms-19Odorskeut- 17Amnesiac-14aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3Simbird-3jpenguin=2Kewne-2random dude-2simbot15-2lumba-1
#266
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Posted 23 July 2006 - 11:29 AM
Lava is the term given to molten rock expelled during a volcanic eruption.Below the earth's surface, magma is the term given to molten rock, rather than lava.
#267
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Posted 23 July 2006 - 11:39 AM
Correct.79. What is 'black body radiation'? (3 points)Score Board:sum41rocksandrolls-56Eärendil- 22Pompous Pom-poms-21Odorskeut- 17Amnesiac-14aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3Simbird-3jpenguin=2Kewne-2random dude-2simbot15-2lumba-1
#268
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Posted 23 July 2006 - 12:01 PM
Black body radiation is the name for the light which comes from a black body (an object which absorbs radiation, discovered by Gustav Kirchhoff in 1862).
#269
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Posted 23 July 2006 - 12:09 PM
Correct.80. What are the dates that separates the three eras? (2 points)Score Board:sum41rocksandrolls-56Eärendil- 22Pompous Pom-poms-21Odorskeut- 17Amnesiac-14aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3MeleeNewb-3Simbird-3jpenguin=2Kewne-2random dude-2simbot15-2lumba-1
#270
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Posted 23 July 2006 - 10:35 PM
The Palaeozoic The Palaeozoic ('old life') is the era from 543Ma to 248 Ma ago. It lasted from the start of the Phanerozoic for over 320 million years. It started with visible life and was characterised by many invertebrate marine animals, such as the now-extinct trilobites, graptolites, brachiopods and cephalopods, and also corals. By the end of the Palaeozoic era, reptiles and amphibians had evolved, and extensive forests were populated by giant tree-ferns, cycads and horsetails. The Palaeozoic era contains 6 periods:
- Cambrian, Ordovician, Silurian (constituting the Lower Palaeozoic sub-era) and the
- Devonian, Carboniferous, Permian (constituting the Upper Palaeozoic sub-era)
- Triassic, Jurassic and Cretaceous periods.
Edited by jpenguin, 24 July 2006 - 02:02 AM.
#271
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Posted 24 July 2006 - 02:12 AM
Correct and +1 bonus for the good reply.81. What is a condensator in electricity? (1 point)Score Board:sum41rocksandrolls-56Eärendil- 22Pompous Pom-poms-21Odorskeut- 17Amnesiac-14aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8timvdp1-6jpenguin-5kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3MeleeNewb-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1
#272
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Posted 24 July 2006 - 02:28 AM
Early capacitors were also known as condensers, a term that is still occasionally used today. It was coined by Volta in 1782 (derived from the Italian condensatore), with reference to the device's ability to store a higher density of electric charge than a normal isolated conductor. Most non-English languages still use a word derived from "condensatore", like the French "condensateur", the German or Polish "Kondensator", or the Spanish "condensador".Applications:Energy storageFilteringSignal processing
Edited by jpenguin, 24 July 2006 - 02:30 AM.
#273
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Posted 24 July 2006 - 02:34 AM
google strikes again...Early capacitors were also known as condensers, a term that is still occasionally used today. It was coined by Volta in 1782 (derived from the Italian condensatore), with reference to the device's ability to store a higher density of electric charge than a normal isolated conductor. Most non-English languages still use a word derived from "condensatore", like the French "condensateur", the German or Polish "Kondensator", or the Spanish "condensador".
Edited by Vibronater, 24 July 2006 - 02:38 AM.
#274
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Posted 24 July 2006 - 02:37 AM
Correct.82. What is faraday's law in electricity? (2 points)Score Board:sum41rocksandrolls-56Eärendil- 22Pompous Pom-poms-21Odorskeut- 17Amnesiac-14aschen-10hackerx-100 vert 0-9Monomer-9DVS_2006-8jpenguin-6timvdp1-6kuisanagi-5Mirai Naza- 5xenos219-4Escaler-3MeleeNewb-3Simbird-3Kewne-2random dude-2simbot15-2lumba-1
#275
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Posted 24 July 2006 - 02:55 AM
Faraday's law of induction (more generally, the law of electromagnetic induction) states that a magnetic field changing in time creates a proportional electromotive force.Faraday's law of electrolysis states that: * The mass of a substance produced at an electrode during electrolysis is proportional to the number of moles of electrons (the quantity of electricity) transferred at that electrode * The number of Faradays of electric charge required to discharge one mole of substance at an electrode is equal to the number of "excess" elementary charges on that ion
