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Nerd Pride Radio The home of the Nerd Pride Radio podcast and other acts of nerdity. 2017-06-12T11:33:17-06:00 https://nerdprideradio.com/nerds/feed.php?f=5&t=1208 2017-06-12T11:33:17-06:00 2017-06-12T11:33:17-06:00 https://nerdprideradio.com/nerds/viewtopic.php?t=1208&p=21086#p21086 <![CDATA[Re: How do we build a space elevator?]]> Statistics: Posted by Mike — Mon Jun 12, 2017 12:33 pm

]]> 2017-06-12T11:22:04-06:00 2017-06-12T11:22:04-06:00 https://nerdprideradio.com/nerds/viewtopic.php?t=1208&p=21082#p21082 <![CDATA[Re: How do we build a space elevator?]]> Statistics: Posted by Kyle — Mon Jun 12, 2017 12:22 pm

]]> 2017-06-12T10:51:40-06:00 2017-06-12T10:51:40-06:00 https://nerdprideradio.com/nerds/viewtopic.php?t=1208&p=21075#p21075 <![CDATA[Re: How do we build a space elevator?]]>
Imagine that you've got yourself a spool of this magic space-elevator cable, and the cable in your hand weighs as much as a U.S. quarter... that's 36 feet of cable. It's like sewing thread that holds space platforms in place over immense distances.

I'm thinking my math is bad, but I know geostationary orbit is 22,000 miles up, and the article says clearly 20 ton cable. Maybe I'm missing something in how the terms are being used, because this really looks like wizardry to me.

Statistics: Posted by Mike — Mon Jun 12, 2017 11:51 am

]]> 2017-06-12T10:42:56-06:00 2017-06-12T10:42:56-06:00 https://nerdprideradio.com/nerds/viewtopic.php?t=1208&p=21073#p21073 <![CDATA[Re: How do we build a space elevator?]]> Statistics: Posted by Kyle — Mon Jun 12, 2017 11:42 am

]]> 2017-06-12T10:37:31-06:00 2017-06-12T10:37:31-06:00 https://nerdprideradio.com/nerds/viewtopic.php?t=1208&p=21072#p21072 <![CDATA[Re: How do we build a space elevator?]]>
Where I'm seeing the holdup is in the carbon nanotube cable we have to make. They casually say that the cable needs a tensile strength of 150 GPa. I just looked that up, and that's 150 GigaPascals, which is 150,000,000,000 newtons of force per square meter. The theoretical limit for carbon nanostructures is 300 GPa. The strongest carbon nano-material we've made so far is 63 GPa. So Obayashi estimates we'll have it up past 150 in about 20 years. I hope so.

If Obayashi is right, we'll have an operational space elevator by 2060. I'll be 90 then. Fingers crossed.

Statistics: Posted by Mike — Mon Jun 12, 2017 11:37 am

]]> 2017-06-12T10:05:35-06:00 2017-06-12T10:05:35-06:00 https://nerdprideradio.com/nerds/viewtopic.php?t=1208&p=21060#p21060 <![CDATA[How do we build a space elevator?]]> Statistics: Posted by Kyle — Mon Jun 12, 2017 11:05 am

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