Author Topic: Elon Musk honours and awards  (Read 17240 times)

Offline Rocket Science

  • Senior Member
  • *****
  • Posts: 10586
  • NASA Educator Astronaut Candidate Applicant 2002
  • Liked: 4548
  • Likes Given: 13523
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #20 on: 05/10/2018 04:07 pm »
Neither does an MBA make a businessman. Props to UK Royal Society for recognizing his contributions with reference to Luigi Galvani, and early 19th century.
https://en.oxforddictionaries.com/definition/galvanize
"to stimulate by electricity"
Galvani was a great Italian scientist, MBAs are a dime a dozen...

MBAs used for making the quarterly results appear great are a dime a dozen.
MBAs starting businesses that employ tens of thousands (50k-ish at the moment), disrupt established industries, and open new futures are priceless.
Still don't need an MBA for that... Did Bill Gates have an MBA when he started Microsoft? Did Steve Jobs have an MBA when he started Apple? Did Mark Zuckerberg have an MBA when he started Facebook? Or in this case Elon's take on it..."I wouldn't recommend an MBA. I'd say no MBA needed. An MBA is a bad idea.""...I hire people in spite of an MBA, not because of one. If you look at the senior managers of my companies, you'll see very few MBAs there."

https://www.aps.org/publications/apsnews/201311/profiles.cfm
« Last Edit: 05/10/2018 04:36 pm by Rocket Science »
"The laws of physics are unforgiving"
~Rob: Physics instructor, Aviator

Offline RoboGoofers

  • Full Member
  • ****
  • Posts: 1001
  • NJ
  • Liked: 868
  • Likes Given: 962
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #21 on: 05/10/2018 05:41 pm »
So like Edison without the Elephant electrocution...

I hope you're right about that one. He could fit a lot of electrocuted elephants into a BFS.
« Last Edit: 05/10/2018 05:42 pm by RoboGoofers »

Offline Robotbeat

  • Senior Member
  • *****
  • Posts: 39254
  • Minnesota
  • Liked: 25206
  • Likes Given: 12104
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #22 on: 05/11/2018 03:17 am »
If the loop is pumped down to a vacuum how possible is hypersonic ?
A true vacuum with literally no molecules is impossible. The standard hyperloop only reduces pressure by like a factor of 100, and there are definitely still aerodynamic effects, especially near Mach 1.

Hypersonic speeds would need a higher vacuum.
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline Swedish chef

  • Full Member
  • *
  • Posts: 172
  • Sweden
  • Liked: 223
  • Likes Given: 309
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #23 on: 05/13/2018 04:49 am »
Although a technologist, and not a pure scientist, as father of the space revolution, his place will eventually be like Newton's <snip>

Ummm... really?  :o

He could be, if he is the first man who sets his foot on Mars. That and nice big statue would help.


Offline Zed_Noir

  • Senior Member
  • *****
  • Posts: 5430
  • Canada
  • Liked: 1792
  • Likes Given: 1292
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #24 on: 05/19/2018 12:10 am »
If the loop is pumped down to a vacuum how possible is hypersonic ?
A true vacuum with literally no molecules is impossible. The standard hyperloop only reduces pressure by like a factor of 100, and there are definitely still aerodynamic effects, especially near Mach 1.

Hypersonic speeds would need a higher vacuum.

Does the nose impeller as pictured in the Hyperloop white paper reduced the aerodynamic effects enough to enable near hypersonic speed in a Hyperloop near vacuum tube?

Offline aero

  • Senior Member
  • *****
  • Posts: 3628
  • 92129
  • Liked: 1145
  • Likes Given: 360
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #25 on: 05/19/2018 02:56 am »
No need to be concerned about hypersonic velocities. Hypersonic is generally referred to as speeds above Mach 5. Transonic might be a concern but since sonic velocity is 331.2 m/s the pod could go a long way in a very short time even at subsonic speeds.
For example, at 300 m/s (~90% of the speed of sound), the pod would be moving at 1080 kph or 671 mph. The distance between Los Angeles and San Francisco is 347 miles as the bird flies so travel time would be 31 minutes at 300 m/s speed. Take some time to accelerate and more time to decelerate and trip time approaches 35 minutes which sounds familiar.

Someone should check my arithmetic!
Retired, working interesting problems

Offline Ludus

  • Full Member
  • ****
  • Posts: 1743
  • Liked: 1255
  • Likes Given: 1014
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #26 on: 05/19/2018 05:00 pm »
https://en.m.wikipedia.org/wiki/Isambard_Kingdom_Brunel
In the tradition of Isambard Kingdom Brunel FRS. The honor hasn’t been exclusively about science.
« Last Edit: 05/19/2018 05:01 pm by Ludus »

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 47445
  • UK
    • Plan 28
  • Liked: 80295
  • Likes Given: 36334
Re: Elon Musk honours and awards
« Reply #27 on: 06/25/2019 03:12 am »
Tonight Brian May presented Elon with the Stephen Hawking Medal for Science Communication:

https://twitter.com/astro_vixen/status/1143307948661313537

Offline IainMcClatchie

  • Full Member
  • ***
  • Posts: 394
  • San Francisco Bay Area
  • Liked: 279
  • Likes Given: 411
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #28 on: 06/25/2019 06:05 am »
If the loop is pumped down to a vacuum how possible is hypersonic ?
A true vacuum with literally no molecules is impossible. The standard hyperloop only reduces pressure by like a factor of 100, and there are definitely still aerodynamic effects, especially near Mach 1.

Hypersonic speeds would need a higher vacuum.

Does the nose impeller as pictured in the Hyperloop white paper reduced the aerodynamic effects enough to enable near hypersonic speed in a Hyperloop near vacuum tube?

Hyperloop vehicles are generally shown with a big compressor at the front.  But that doesn't actually make sense.  The first thing to contact incoming air should be a heat exchanger which would chill the incoming air stream.  This greatly reduces the amount of shaft energy that gets converted to heat energy in the compressor, which in turn reduces the size of the battery which supplies that energy and the heat dump which absorbs it.

For those of you interested in supersonic or even hypersonic travel in a tube, the folks at Reaction Engines Limited have figured out how to make this heat exchanger work at those speeds.  I have grave doubts about the Skylon system as a whole, but this part has seen a lot of development and works.

As Elon described it, the pod would dump the compressed air out the back.  This is pointless -- any thrust the vehicle achieves costs the next vehicle even more in drag.  Having done the hardest part of the compression, you are better off compressing the air further and storing it, to be ejected from the system entirely after the vehicle arrives at its destination.  The pods are far better at evacuating air from the tubes than vacuum pumps would be, so much so that the tubes would quickly drop well below the 100 Pa pressure that Elon envisioned.  At around 10 Pa pressure the aerodynamics of the pumps change, as the mean free molecular path gets to be an interesting fraction of a turbine blade chord.  I suspect compressor efficiency would drop at this point and the vehicles would stop effectively scavenging air from the tube.

Actual supersonic speeds might be largely unnecessary if there is significant traffic.  The pods heat the air as they pass through, and at low pressures that air becomes effectively more viscous (relative to its momentum).  That means the lower pressure air is worse at transferring heat to the tube walls, and is likely to get quite warm.  At higher temperatures the speed of sound increases.

The real problem with supersonic and certainly with hypersonic speeds is that the turn bend radius becomes very, very large.  The standard turn for a commercial aircraft is 0.5 G laterally, which is quite aggressive for a land-based vehicle.  At 320 m/s, approximately Mach 1 at room temperature, the bend radius is 21 km, and it increases quadratically with speed.  You might argue that you can eliminate bends in the point-to-point system that Musk described, but transportation systems are never point to point, but rather networks.  Networks have switch points which require bends.  Very large turn radii reduce the density of switch points which increases the travel time once you exit the Hyperloop system and get back onto surface streets.  Mach 1 might be approached midway between San Francisco and Los Angeles, but most travel time would be spent at perhaps half that speed.  A network designed to get people from San Francisco to Los Angeles in around 30 minutes would be seriously suboptimal for the much larger number of passengers who wish to travel at high speed within those metropolises, or even for those not near the few Hyperloop terminal points possible.  50 minutes is a much more reasonable goal.

Offline Robotbeat

  • Senior Member
  • *****
  • Posts: 39254
  • Minnesota
  • Liked: 25206
  • Likes Given: 12104
Re: Elon Musk FRS (Fellow of the Royal Society)
« Reply #29 on: 06/25/2019 10:45 am »
If the loop is pumped down to a vacuum how possible is hypersonic ?
A true vacuum with literally no molecules is impossible. The standard hyperloop only reduces pressure by like a factor of 100, and there are definitely still aerodynamic effects, especially near Mach 1.

Hypersonic speeds would need a higher vacuum.

Does the nose impeller as pictured in the Hyperloop white paper reduced the aerodynamic effects enough to enable near hypersonic speed in a Hyperloop near vacuum tube?

Hyperloop vehicles are generally shown with a big compressor at the front.  But that doesn't actually make sense.  The first thing to contact incoming air should be a heat exchanger which would chill the incoming air stream.  This greatly reduces the amount of shaft energy that gets converted to heat energy in the compressor, which in turn reduces the size of the battery which supplies that energy and the heat dump which absorbs it.

For those of you interested in supersonic or even hypersonic travel in a tube, the folks at Reaction Engines Limited have figured out how to make this heat exchanger work at those speeds.  I have grave doubts about the Skylon system as a whole, but this part has seen a lot of development and works.

As Elon described it, the pod would dump the compressed air out the back.  This is pointless -- any thrust the vehicle achieves costs the next vehicle even more in drag.  Having done the hardest part of the compression, you are better off compressing the air further and storing it, to be ejected from the system entirely after the vehicle arrives at its destination.  The pods are far better at evacuating air from the tubes than vacuum pumps would be, so much so that the tubes would quickly drop well below the 100 Pa pressure that Elon envisioned.  At around 10 Pa pressure the aerodynamics of the pumps change, as the mean free molecular path gets to be an interesting fraction of a turbine blade chord.  I suspect compressor efficiency would drop at this point and the vehicles would stop effectively scavenging air from the tube.

Actual supersonic speeds might be largely unnecessary if there is significant traffic.  The pods heat the air as they pass through, and at low pressures that air becomes effectively more viscous (relative to its momentum).  That means the lower pressure air is worse at transferring heat to the tube walls, and is likely to get quite warm.  At higher temperatures the speed of sound increases.

The real problem with supersonic and certainly with hypersonic speeds is that the turn bend radius becomes very, very large.  The standard turn for a commercial aircraft is 0.5 G laterally, which is quite aggressive for a land-based vehicle.  At 320 m/s, approximately Mach 1 at room temperature, the bend radius is 21 km, and it increases quadratically with speed.  You might argue that you can eliminate bends in the point-to-point system that Musk described, but transportation systems are never point to point, but rather networks.  Networks have switch points which require bends.  Very large turn radii reduce the density of switch points which increases the travel time once you exit the Hyperloop system and get back onto surface streets.  Mach 1 might be approached midway between San Francisco and Los Angeles, but most travel time would be spent at perhaps half that speed.  A network designed to get people from San Francisco to Los Angeles in around 30 minutes would be seriously suboptimal for the much larger number of passengers who wish to travel at high speed within those metropolises, or even for those not near the few Hyperloop terminal points possible.  50 minutes is a much more reasonable goal.
Heat exchanging with what?
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline Lar

  • Fan boy at large
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 13463
  • Saw Gemini live on TV
  • A large LEGO storage facility ... in Michigan
  • Liked: 11864
  • Likes Given: 11081
Re: Elon Musk honours and awards
« Reply #30 on: 06/25/2019 10:12 pm »
Is this on topic? Do we have a thread for this specifically? Yeah, the nested posts are from a year ago but still.
"I think it would be great to be born on Earth and to die on Mars. Just hopefully not at the point of impact." -Elon Musk
"We're a little bit like the dog who caught the bus" - Musk after CRS-8 S1 successfully landed on ASDS OCISLY

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 47445
  • UK
    • Plan 28
  • Liked: 80295
  • Likes Given: 36334
Re: Elon Musk honours and awards
« Reply #31 on: 12/19/2020 07:01 am »
https://fortune.com/longform/elon-musk-ceo-tesla-spacex-2020-businessperson-of-the-year/

Quote
Elon Musk’s rocket ride
SpaceX is soaring. Tesla is roaring. How the world’s most creative and controversial CEO is transforming one industry after another—and why he’s Fortune’s Businessperson of the Year.

BY ANDREW NUSCA AND MICHAL LEV-RAM
December 2, 2020 11:30 AM GMT

Offline su27k

  • Senior Member
  • *****
  • Posts: 6414
  • Liked: 9097
  • Likes Given: 885
Re: Elon Musk honours and awards
« Reply #32 on: 02/10/2022 11:38 am »
https://twitter.com/SciGuySpace/status/1491503113425072131

Quote
Elon Musk has been elected to the National Academy of Engineering, joining 132 other new members.

https://nae.edu/270224.aspx


Quote from: nae.edu
Musk, Elon Reeve, founder, chief executive officer, and chief engineer, SpaceX, Hawthorne, Calif. For breakthroughs in the design, engineering, manufacturing, and operation of reusable launch vehicles and sustainable transportation and energy systems.

Online FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 47445
  • UK
    • Plan 28
  • Liked: 80295
  • Likes Given: 36334
Re: Elon Musk honours and awards
« Reply #33 on: 10/04/2023 09:41 pm »
twitter.com/iafastro/status/1709177548188336391

Quote
CONGRATULATIONS to our awardees!🏆 Elon Musk the winner of the IAF World Space Award, Stephanie Bednarek received it on his behalf. The IAF World Space Award for Teams was awarded to @NASA, @csa_asc @esa and handed to Pam Melroy during the Opening Ceremony!✨#IAC2023

https://twitter.com/elonmusk/status/1709478694266302893

Quote
Thank you on behalf of the people of SpaceX for whom all credit is deserved!

Tags:
 

Advertisement NovaTech
Advertisement Northrop Grumman
Advertisement
Advertisement Margaritaville Beach Resort South Padre Island
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0