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Some info to share.

Work done by EmDrive to accelerate mass does not depend on frame dependent initial velocity. Ie work done during the say 1st second of acceleration is the same.

Work done by EmDrive to accelerate mass can be frame invarient by using dV to calc KE change.

Work done by EmDrive to accelerate mass increases by the square of the time of acceleration.

EmDrive generated force decreases as acceleration continues. Generated force returns to initial value after acceleration stops and restarts.

Nothing new to physics here. Just a viewpoint based on the accelerating mass, which has no idea of it's velocity.
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General Discussion / Re: Research question
« Last post by Ludus on Today at 04:30 AM »
If you copy and paste that entire block of text provided into the google search bar, the first return is this:

http://commons.erau.edu/cgi/viewcontent.cgi?article=1096&context=publication

which is from the same university and in the right area.

It might be worth exploring around some of the other search returns to see if something comes together.
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Chinese Launchers / CFOSAT - CZ-2C - JSLC - Q3, 2018
« Last post by SmallKing on Today at 04:29 AM »
The long delayed CFOSAT will be launched in Q3, 2018
An article appearing in Digitaljournal.com yesterday about CFOSAT.
http://www.digitaljournal.com/news/world/first-joint-france-china-satellite-to-study-oceans/article/505587

"France and China's space agencies unveiled their first joint satellite in Beijing Friday, which will be used to improve forecasting of ocean storms and cyclones.

The satellite, named CFOSAT (China-France Oceanography Satellite), is due to be launched next year by China and will primarily be used to study wind and ocean wave patterns." (para 1 and 2)

The satellite will be placed into Earth's orbit in the second half of 2018 by a rocket from China's "Long March" programme. The project is scheduled to last three years." (last paragraph)


First Sino-French satellite joint venture. Has France and China collaborated in other spaceflight related joint venture before?
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General Discussion / Re: Is the race to colonise Mars a mistake?
« Last post by redliox on Today at 04:24 AM »
Not at all.

I will grant I'm a follower of the Mars Direct approach, but out of the immediate destinations available (basically those that would take less an a year to reach) Mars is the most Earthlike and the most abundant in resources.  If what you desire is a home the easiest to adapt to, Mars is the best you can get outside of a perfectly terraformed Venus.  Neither Luna or the asteroids have an atmosphere for aerocapture or radiation protection and only Mars has a day/night cycle akin to Earth's 24 hours.  If you want quality Mars is logical.

If Luna can be colonized, I wouldn't object either, but Mars offers more whereas Luna just has proximity.  Otherwise it's just politics with politicians who rarely think past their service length.  If a commercial entity can bypass the politics (either Blue Origin or SpaceX or anyone else), all the better regardless of Moon or Mars.
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New Physics for Space Technology / Re: Atemporal Universe
« Last post by Ludus on Today at 04:09 AM »
So time has no meaning other than the order of events and entropy gives that order a directional bias. The order of events isnít equivalent in either direction in time. Gravity gives movement in space directional bias. Itís not the same moving in one direction as another in a universe with space bent by the presence of mass. Up is different from Down like Future is different from Past.
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Chinese Launchers / Re: OneSpace Corporation
« Last post by SmallKing on Today at 04:08 AM »
They have conducted several testings of fairing separation and stage separations
https://mp.weixin.qq.com/s/DpjWx4pdR0V6s4xjg1pOKw
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Chinese Launchers / Re: Unknown - CZ-2D - JSLC - November, 2017
« Last post by SmallKing on Today at 04:04 AM »
There are two CZ-2Ds being preparing for launch in JSLC
These rockets arrived at JSLC on Oct. 16
https://mp.weixin.qq.com/s/9Ho0gVfPyDC9y0DUPtK2ww



They do this each time rockets arrive at the railway station?
It should be
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General Discussion / Re: Is the race to colonise Mars a mistake?
« Last post by Ludus on Today at 03:46 AM »
Hello Ludus,

On the contrary, NASA's development of the SLS is to facilitate a potential Mars mission.  That is well documented.

There is absolutely no reason that humans cannot colonize space via space stations rather than on planetary terrain.  This, I believe, is more feasable than planetary colonization as you could theoretically have a hundred such stations orbiting the sun in tandem with the planets.  A colony on Mars would effectively be a space station sitting on the ground.  it would have to provide all the necessities of life just as any space station would, so why make it hard by trying to land/build it on a planet with an atmosphere through which you must pass at great risk to land, and then have to fuel vehicle launches to escape that planet's gravity if you wish to leave? Why not have your main infrastructure permanently in space and explore from it instead? 

Mars is an ego trip, nothing more.  It has the net result of saying "we did it" rather than "we're doing it... and we're still doing it... and other things too"!!

Your last paragraph typifies the attitudes of space developers to consider the possibilities.  They see huge structures like the ONeill colonies and baulk at the scale.  That's where my own system steps in, and I'm surprised no-ones seriously considered it before now. 

Bear with me and I'll explain my concept shortly...

As others have pointed out, SLS may in some hand wavy PR sense be about Mars, but there are zero missions planned or funded. SLS is a program to provide jobs mostly in Alabama where a particularly well placed Senator wants them.

Mars like earth has resources right there where people can exploit them to make a living.Once there they can make rocket propellant from the air and ice on the ground. At current technology levels humans can settle using local resources on Mars. Apparently you want to launch everything to support this system from the earth indefinitely? Itís not about scale per se but available resources and cost. Any effort to make humans spacefaring has to explain how to exploit local resources to make a living. Otherwise all thatís possible is brief excursions supported at great expense from the earth like Apollo or the ISS.
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Spotlight Space: Episode 2: A Weather Forecast Game-Changer

LockheedMartinVideos
Published on Oct 22, 2017

Weíre going behind the scenes to spotlight the latest space technology in this edition of Spotlight Space. NOAAís GOES-R satellite series will improve weather forecasting quality and timeliness generating significant economic benefits to the nation in the areas of climate monitoring, ecosystems management, commerce, and transportation. In this episode, we go inside the clean room to learn how better weather forecasts start in space. As leaders in space technology, Lockheed Martin is developing the latest spacecraft and satellites to explore the universe.

https://www.youtube.com/watch?v=2cT5f0_TnNo?t=001

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Spotlight Space: Episode 1: Testing a Spaceship on Earth

LockheedMartinVideos
Published on Oct 6, 2017


We're going behind the scenes to spotlight the latest space technology. NASA's Orion spaceship will take people to the moon and deep space. In this episode, we'll show you how we test the spacecraft to survive the punishing environment of launch and space. As leaders in space technology, Lockheed Martin is developing the latest spacecraft and satellites to explore the universe.

https://www.youtube.com/watch?v=vYYakFC9Fpw?t=001

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