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#1 2018-10-20 08:35:08

EdwardHeisler
Member
Registered: 2017-09-20
Posts: 350

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#2 2018-10-20 16:04:44

louis
Member
From: UK
Registered: 2008-03-24
Posts: 6,914

Re: In Defense of Elon Musk

I don't think there's anyone here who's attacking Elon Musk.  Yes, we want risk-takers to get to Mars.  But people always have to take responsibility for their behaviour. Some of Musk's behaviour hasn't been defensible sadly.  Sometimes people press the self-destruction button.  I doubt Musk's day to day involvement in rocket design is as big as it was at the outset - 10-15 years ago. So I hope Space X can survive his personal demons. I don't know who it was who went from ITS to BFR but it was a brilliant move. I think it really is one of the greatest business/design decisions of all time. If it was really Musk's decision, well all credit to him.  But the decision having been made, I am not sure the project is really Musk-dependent now.


Let's Go to Mars...Google on: Fast Track to Mars blogspot.com

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#3 2021-08-07 12:42:19

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,597

Re: In Defense of Elon Musk

For SpaceNut ... there are many topics that contain the words Elon and Musk ... this one seemed lonely with only one reply...


https://currently.att.yahoo.com/lifesty … 00762.html

Elon Musk Says the Sun Can Power All of Civilization. Of Course He's Right.
Caroline Delbert
Sat, August 7, 2021, 8:45 AM

This is a nice puff piece.

It contains a wildly incorrect figure that a few NewMars members will spot immediately.

Ms. Delbert seems to have caught the flavor of Musk's enthusiasm, although she is clearly adrift in the facts and figures.

(th)

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#4 2021-08-07 14:13:46

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,333

Re: In Defense of Elon Musk

I guess we can ignore all of the suns energy that are used directly without conversion or storage as electrical.

We know that energy from the sun is not all absorbed and that it gets reflected away as well.

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#5 2021-08-07 15:53:04

Calliban
Member
From: Northern England, UK
Registered: 2019-08-18
Posts: 1,193

Re: In Defense of Elon Musk

tahanson43206 wrote:

This is a nice puff piece.

It contains a wildly incorrect figure that a few NewMars members will spot immediately.

Ms. Delbert seems to have caught the flavor of Musk's enthusiasm, although she is clearly adrift in the facts and figures.

(th)

Is that the piece where it says the Earth absorbs 2/3rd of the sun's energy output?  It is actually less than two billionth of the sun's energy output.  It is a sobering thought.  As humanity spreads out into space, we could use 1 million times as much energy as the Earth receives from the sun and we would still only be using <0.2% of the sun's energy output.

Last edited by Calliban (2021-08-07 15:53:48)


Interested in space science, engineering and technology.

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#6 2021-08-07 16:04:06

louis
Member
From: UK
Registered: 2008-03-24
Posts: 6,914

Re: In Defense of Elon Musk

Geniuses often have pebbles thrown at them by pedants. They bounce off. I'm sure we all know what he meant.

tahanson43206 wrote:

For SpaceNut ... there are many topics that contain the words Elon and Musk ... this one seemed lonely with only one reply...


https://currently.att.yahoo.com/lifesty … 00762.html

Elon Musk Says the Sun Can Power All of Civilization. Of Course He's Right.
Caroline Delbert
Sat, August 7, 2021, 8:45 AM

This is a nice puff piece.

It contains a wildly incorrect figure that a few NewMars members will spot immediately.

Ms. Delbert seems to have caught the flavor of Musk's enthusiasm, although she is clearly adrift in the facts and figures.

(th)


Let's Go to Mars...Google on: Fast Track to Mars blogspot.com

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#7 2021-08-07 16:06:44

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,333

Re: In Defense of Elon Musk

So a bigger project than a ringed world would be a ring around the sun so as to collect more energy....

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#8 2021-08-07 16:18:48

Calliban
Member
From: Northern England, UK
Registered: 2019-08-18
Posts: 1,193

Re: In Defense of Elon Musk

Gérard O'Neil believed that humanity's future lay in space, far away from any planet.  At Earth distance from the sun, sunlight would be available 24/7 at an intensity of 1360W/m2.  It could be concentrated further by aiming a foil-thin concave mirror at the sun.  Using a mirror weighing a few tens of tonnes, one could focus as much heat as would be generated by a large nuclear power reactor.  I think ultimately, humanity will follow the energy.  At least I hope that we will.  I don't like the alternative very much.


Interested in space science, engineering and technology.

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#9 2021-09-10 10:24:00

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 907

Re: In Defense of Elon Musk

Elon Musk's SpaceX calls out Amazon in latest spat over Starlink: 'Despite its theatrics, Amazon does not identify a single fact, figure, or scintilla of data that SpaceX omitted from its application'
https://www.businessinsider.com/elon-mu … ink-2021-9

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#10 2021-09-10 10:50:38

kbd512
Administrator
Registered: 2015-01-02
Posts: 4,708

Re: In Defense of Elon Musk

tahanson43206,

I'm only reading this today, and my math could be a little off, but if 257 YottaWatts were striking the surface of the Earth, then I'm not sure that we would have an Earth's surface to build anything on, because that would be nearly 504 GigaWatts per square meter.  We wouldn't need much in the way of solar panel area to power humanity, assuming we could make solar panels out of plasma.  Regarding the subject of this thread, is Ms Delbert actually attacking Elon Musk or simply displaying her stunning ignorance?  I never heard of her.  Why do you guys waste time reading this sort of idiocy anyway?  I'm only now discovering the existence of this thread and haven't read any comments, so apologies if the problem, real or imagined, has already worked itself out.

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