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    <title><![CDATA[Discussion on Rocket-propelled car could hit 1,000 mph ]]></title>
    <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005]]></link>
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    <language>en-us</language>
    <lastBuildDate>2013-05-26T01:21:41-07:00</lastBuildDate>
             

    <item>
        <title><![CDATA[fun.]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80378]]></link>
        <description><![CDATA[This is fun. Better do it quick before someone puts a stop to it.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80378]]></guid>
        <dc:creator><![CDATA[opcom]]></dc:creator>
        <pubDate>Mon, 08 Oct 2012 09:27:19 -0700</pubDate>
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    <item>
        <title><![CDATA[Why waste fuel and money with this nonsense?]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80323]]></link>
        <description><![CDATA[How about something practical like a magnalev train rather than an airplane redesigned to run on the ground. Also that thrust must be applied gradually, if you start with it it will crush a human occupant.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80323]]></guid>
        <dc:creator><![CDATA[Arctic Char]]></dc:creator>
        <pubDate>Fri, 05 Oct 2012 19:28:15 -0700</pubDate>
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    <item>
        <title><![CDATA[Thrust]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80318]]></link>
        <description><![CDATA[Um, the Space Shuttle main engines about 500k pounds thrust X3 = 1.5 million pounds thrust plus two solid rocket boosters at 1.5 million pounds each for a total of 4.5 million pounds thrust at launch, all applied when the shuttle is at rest. As far as I know no astronauts have had to be sponged off of seats due to the acceleration. This rocket car should have no problem.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80318]]></guid>
        <dc:creator><![CDATA[Paul The Red]]></dc:creator>
        <pubDate>Fri, 05 Oct 2012 14:15:58 -0700</pubDate>
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    <item>
        <title><![CDATA[thrust]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80211]]></link>
        <description><![CDATA[It will be OK as long as they don't apply all that thrust starting from zero velocity... the purpose of that much thrust is to overcome wind resistance at high speed, so if they start off at lower thrust and accelerate continuously at 3 G-forces or less, ramping up the thrust to counter wind drag at the same rate that the drag increases, the driver will probably survive the acceleration.  I do hope they have done their aeronautical engineering well enough to be sure it will survive the shockwave produced when they break the sound barrier while flying at zero altitude...]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80211]]></guid>
        <dc:creator><![CDATA[kricci]]></dc:creator>
        <pubDate>Thu, 04 Oct 2012 11:43:24 -0700</pubDate>
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    <item>
        <title><![CDATA[&quot;Darwin Award&quot;]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80190]]></link>
        <description><![CDATA[Remember the classic email urban legend about the rocket-powered car that smashed into a cliff and earned its inventor the &quot;Darwin Award&quot;?  These guys will probably survive though, as long as they stick to running it on salt flats and don't have a fire...]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80190]]></guid>
        <dc:creator><![CDATA[kricci]]></dc:creator>
        <pubDate>Thu, 04 Oct 2012 11:39:36 -0700</pubDate>
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    <item>
        <title><![CDATA[problematic]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80184]]></link>
        <description><![CDATA[14,000 pounds of thrush............inertia dampeners have not been invented yet....... i guess we are gonna scrape the smear off the seat to congradulate it.i think some one has not thought about this yet.]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80184]]></guid>
        <dc:creator><![CDATA[Hobbits]]></dc:creator>
        <pubDate>Thu, 04 Oct 2012 10:10:51 -0700</pubDate>
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    <item>
        <title><![CDATA[Confusing article]]></title>
        <link><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80180]]></link>
        <description><![CDATA[A rocket motor is very different from a 'jet' engine and the Typhoon/Eurofighter is powered by the Eurojet EJ200 Turbofan. Also, liquid rocket fuels are a combination of two substances, such as kerosene and (hydrogen) peroxide, an oxidizer. As the engine is not designed or intended to be used in an exo-atmospheric environment the need for an oxidizing agent to provide oxygen isn't significant.  Could it be that the engine under test has been modified to use a rocket type liquid fuel combination in the afterburner stage?]]></description>
        <guid><![CDATA[http://www.smartplanet.com/forum/discussions/1-12005-80180]]></guid>
        <dc:creator><![CDATA[LyndaBarry]]></dc:creator>
        <pubDate>Thu, 04 Oct 2012 09:58:22 -0700</pubDate>
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