# ISS Question.

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#### booyah

##### Guest
Whats the ISS's speed?

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#### booyah

##### Guest
Whats the ISS's speed?

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#### booyah

##### Guest
WOW! Thats like Mac 10 or somthing!

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#### booyah

##### Guest
WOW! Thats like Mac 10 or somthing!

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#### arobie

##### Guest
Lets see, 7.7 kilometers per second. Thats about 17,224 miles per hour. Thats about times the speed of sound, Mach 22.

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#### arobie

##### Guest
Lets see, 7.7 kilometers per second. Thats about 17,224 miles per hour. Thats about times the speed of sound, Mach 22.

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#### igorsboss

##### Guest
<font color="yellow">WOW! Thats like Mac 10 or somthing!</font><br /> <br />No, I think they're PC-based. <img src="/images/icons/wink.gif" />

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#### igorsboss

##### Guest
<font color="yellow">WOW! Thats like Mac 10 or somthing!</font><br /> <br />No, I think they're PC-based. <img src="/images/icons/wink.gif" />

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#### booyah

##### Guest
Its PC based?<br />If so they should just use a mach radar gun and ummm radar the speed. Just to see how fast it can go. That would be cool!

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#### booyah

##### Guest
Its PC based?<br />If so they should just use a mach radar gun and ummm radar the speed. Just to see how fast it can go. That would be cool!

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#### arobie

##### Guest
PC-based? What do you mean by that?

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#### arobie

##### Guest
PC-based? What do you mean by that?

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#### booyah

##### Guest
He means (I think) that ok,<br />"Hey your reaching 95%up in the air! Prepare to come down!"<br />instead of <br />"Hey your reaching speeds of mach 20! Shut down your engines to prepare to comd down!"

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#### booyah

##### Guest
He means (I think) that ok,<br />"Hey your reaching 95%up in the air! Prepare to come down!"<br />instead of <br />"Hey your reaching speeds of mach 20! Shut down your engines to prepare to comd down!"

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#### nacnud

##### Guest
Isn't Mach 10 a new type of razor?

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#### nacnud

##### Guest
Isn't Mach 10 a new type of razor?

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#### remcook

##### Guest
"WOW! Thats like Mac 10 or somthing! "<br /><br />it's actually quote useless to speak of Mach numbers in space, because the speed of sound is zero there. Mach number is the velocity divided by the speed of sound. The speed of sound changes with air density, so for one certain velocity, the Mach number changes for instance with altitude.

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#### remcook

##### Guest
"WOW! Thats like Mac 10 or somthing! "<br /><br />it's actually quote useless to speak of Mach numbers in space, because the speed of sound is zero there. Mach number is the velocity divided by the speed of sound. The speed of sound changes with air density, so for one certain velocity, the Mach number changes for instance with altitude.

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#### Saiph

##### Guest
Arobie: Actually, the PC-based was a play on words.<br /><br />Igor said: WOW! Thats like <i>Mac</i> 10 or somthing! <br /><br />Instead of <i>Mach</i> 10.<br /><br /><br />I'd also argue that, while Mach ratings are moot in space, they're still useful in conveying the sheer speed to the laymen. <div class="Discussion_UserSignature"> <p align="center"><font color="#c0c0c0"><br /></font></p><p align="center"><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">----</font></em></font><font color="#666699">SaiphMOD@gmail.com </font><font color="#999999"><em><font size="1">-------------------</font></em></font></p><p><font color="#999999"><em><font size="1">"This is my Timey Wimey Detector.  Goes "bing" when there's stuff.  It also fries eggs at 30 paces, wether you want it to or not actually.  I've learned to stay away from hens: It's not pretty when they blow" -- </font></em></font><font size="1" color="#999999">The Tenth Doctor, "Blink"</font></p> </div>

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#### Saiph

##### Guest
Arobie: Actually, the PC-based was a play on words.<br /><br />Igor said: WOW! Thats like <i>Mac</i> 10 or somthing! <br /><br />Instead of <i>Mach</i> 10.<br /><br /><br />I'd also argue that, while Mach ratings are moot in space, they're still useful in conveying the sheer speed to the laymen. <div class="Discussion_UserSignature"> <p align="center"><font color="#c0c0c0"><br /></font></p><p align="center"><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">--------</font></em></font><font color="#999999"><em><font size="1">----</font></em></font><font color="#666699">SaiphMOD@gmail.com </font><font color="#999999"><em><font size="1">-------------------</font></em></font></p><p><font color="#999999"><em><font size="1">"This is my Timey Wimey Detector.  Goes "bing" when there's stuff.  It also fries eggs at 30 paces, wether you want it to or not actually.  I've learned to stay away from hens: It's not pretty when they blow" -- </font></em></font><font size="1" color="#999999">The Tenth Doctor, "Blink"</font></p> </div>

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