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I've created the new Space and Science Trivia III thread. I carried over all open question to that thread.
I'd like to thank everyone for participateing.
Please go to the new thread for any farther trivia.
Let this one Die!

<blockquote><blockquote>Q.134: What is a Wolf-Rayet Star?</blockquote>
A134: Supermassive, superhot, superbright stars with short lifespans that throw off a lot of their material.</blockquote>

Not an accurate answer, try again.

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<blockquote>Q.134: What is a Wolf-Rayet Star?</blockquote>
A134: Supermassive, superhot, superbright stars with short lifespans that throw off a lot of their material.

Q.134: What is a Wolf-Rayet Star?

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<blockquote>ok do I get a 2nd chance?
Q133: If a body orbiting the Sun reaches Aphelion and is travelling at 29km/s, will it be travelling faster or slower when it reaches Perihelion?

It will be traveling faster at perihelion. when it is closer to the Sun.</blockquote>

Correct, you win a Mars Bar :D

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ok do I get a 2nd chance?
Q133: If a body orbiting the Sun reaches Aphelion and is travelling at 29km/s, will it be travelling faster or slower when it reaches Perihelion?

It will be traveling faster at perihelion. when it is closer to the Sun.

Q132: What are the three Main Inner Solar System Asteroid families (NEA's) called, and which pose the greatest threat the the Earth.

A132:CSM. C-type,S-type, M-type. C is carbonaceous, 75% of known asteroids
S - type is silicaceous and is about(these are really only estimates) 17% of the known number of asteroids and then M-type Metallic. Most of the reaming asteroids that they haven't found a name for.


Terrohertz, they are types of planetisimal regardless of location in the Solar system so that answer is incorrect. The Families in questions contain members of all three types you mention.

Q133: If a body orbiting the Sun reaches Aphelion and is travelling at 29km/s, will it be travelling faster or slower when it reaches Perihelion?

A133: Aphelion. as bodies approach another body then the gravitations forces are stronger.

Wrong answer, if you read the question I asked if it would be travelling faster or slower at perihelion.

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Q132: What are the three Main Inner Solar System Asteroid families (NEA's) called, and which pose the greatest threat the the Earth.

A132:CSM. C-type,S-type, M-type. C is carbonaceous, 75% of known asteroids
S - type is silicaceous and is about(these are really only estimates) 17% of the known number of asteroids and then M-type Metallic. Most of the reaming asteroids that they haven't found a name for.

Q133: If a body orbiting the Sun reaches Aphelion and is travelling at 29km/s, will it be travelling faster or slower when it reaches Perihelion?

A133: Aphelion. as bodies approach another body then the gravitations forces are stronger.

Regarding Io..will do Terrohertz.

Q133: If a body orbiting the Sun reaches Aphelion and is travelling at 29km/s, will it be travelling faster or slower when it reaches Perihelion?

Regarding Venus, it is certainly tidal lock as computer models have shown the effect perfectly.

Regarding a body stopping anf falling apart, it cannot. The Mass of the body will possess the same gravity whether it is in motion or stationary, spinning or not, it is only it's kinetic energy that would change as a result. As the gravity would remian, the body would remain and would thus not fall apart. This is akin to the old notion that if the Earth stopped spinning we would all fall off.

Gravity is a product of MASS and proportional to the density of the body, the more mass a body has, the greater it's gravitational field will be, however if that same mass is reduced in volume to a smaller sphere, then it's gravitational field will grow proportionatley, ie: Reduce the volume by one half, but keep the mass the same, you will double the gravitational field density of the mass, and so forth.

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>Teerohertz, Bang on mate, that was the answer I was after. It has been shown >mathematically that Earth is responsible for the tidal lock on Venus and that any >impact sufficiently big enough to have that effect onm the planet would likely >have destroyed the proto-planet or at least have left it with a planetary sized >satelliet as Earth was.

The books that I have read hinted more strongly to the collision effect and put down the tidal locking effect. Stateing that the rotation of Venus would be 0.06 slower if tidal locking was the cause. and therefore their reason is better.
I think that if a planetary body came to a stop then it would fall apart if it didn't have the magnetic and gravitation assistance of a neighboring body.

A:129 A total of three X-15's were built #1 was sent to the National Air and Space Museum in Washington DC. #2 is on display at the Air Force Museum at Wright-Patterson Air Force Base, Ohio. #3 was destroyed in a crash on November 15, 1967.
Spectrum you got it again. almost word for word. do you have the same bok that i do?

Q130:Which moon of Jupiter has currently active volcanos?

A130: Io, the most volcanically active body in the Solar System
Jim you got this one. look for some more questions on this moon in the future.

Teerohertz, Bang on mate, that was the answer I was after. It has been shown mathematically that Earth is responsible for the tidal lock on Venus and that any impact sufficiently big enough to have that effect onm the planet would likely have destroyed the proto-planet or at least have left it with a planetary sized satelliet as Earth was.


Q132: What are the three Main Inner Solar System Asteroid families (NEA's) called, and which pose the greatest threat the the Earth.

Q133: Discovered in 1977, which Solar System body has an average orbit beyond Saturn but nearer than Uranus?

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Q131: Which Planet in the Solar System has a Day longer than it's year and why?

A131: Venus. obital period=224.68 days(earth days) rotational period = 243.01 days(retrograde/backwards) this part of the question has been asked before but you threw in a twist...WHY?
I't is tempting to say of tidal locking of Earth. which has been said before. then others say that it is because of an impact(asteroid/comit what ever) collided with it and not only stopped it but began turning the other way.Since it is turning the other way from an impact it isn't turning at full speed.
I'm going to take a gues that the answer you are looking for and say tidal locking of Earth.

A:129 A total of three X-15's were built #1 was sent to the National Air and Space Museum in Washington DC. #2 is on display at the Air Force Museum at Wright-Patterson Air Force Base, Ohio. #3 was destroyed in a crash on November 15, 1967.

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Q130:Which moon of Jupiter has currently active volcanos?

A130: Io, the most volcanically active body in the Solar System

Q129:How many X-15s where built?

A129: 5? (Just a guess)

Here's one for you all...

Q131: Which Planet in the Solar System has a Day longer than it's year and why?

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A:128 Mean orbital velocity of the earth is 29.78 km/s or 107,208kmh or 67,005mph
We are living on a speed freak!
you got it Spectrum.

I'll create a new thread tomorrow.

Q129:How many X-15s where built?

Q130:Which moon of Jupiter has currently active volcanos?

Q128:How fast does the Earth move in it's orbit around the Sun?

A:128 Mean orbital velocity of the earth is 29.78 km/s or 107,208kmh or 67,005mph
We are living on a speed freak!

A127: It had the first extrasolar planetary system ever discovered. Actually it was discovered in 1991 but not announced until 1992.
You got it RDC.
they have now according to Astronomy magazine also found 4 planets orbiting that pulsar. The distances from the pulsar are also proportional (half )to the distances of our solarsystem's inner planets.

May 2005 issue