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99188

Re: Flyby another star before 2100

My mission profile is: Launch in 2050. A decade at 0.1 m/s^2 acceleration. (What sort of X-ray flux is that?) Four decades cruising along at 10% c. 2100:
Henry Cobb
May 26
#99188
 
99187

Re: Flyby another star before 2100

If you'll accept a low bandwidth return link then angle the X-ray sail in code. If you're providing 1% G thrust at 0.5ly then surely the back reflection is
Henry Cobb
May 26
#99187
 
99186

Re: Flyby another star before 2100

Adding a requirement of “the probe must send its results back to Earth” makes the situation more challenging, as it will add a significant minimum mass to
Anthony Jackson
May 26
#99186
 
99185

Loaded for Bear

Hunting bear. So weapon Ammo Gear is all for big, namely bears. Also can mean large hard targets, such as tanks. Mike Sent via BlackBerry by AT&T
Mike Adams
May 26
#99185
 
99184

Re: Loaded for bear

Sorry. I am a little distracted. I just reread understood what I was missing. Sorry again. -Joshua From: sfconsim-l@yahoogroups.com
Joshua Berkau
May 25
#99184
 
99183

Re: Loaded for bear

Was there supposed to be more to this question? I'm a little lost on context. Stephen Rider ... Was there supposed to be more to this question? I'm a little
Stephen Rider
May 25
#99183
 
99182

Loaded for bear

Suddenly, "loaded for bear' sounds a lot more high tech. I'm not a math whiz. Can any of you explain this in simpler terms? -Joshua ... Email:
Joshua Berkau
May 25
#99182
 
99181

Re: Flyby another star before 2100

... I agree, and this is similar to the sort of approach I'd go with. Figuring out a design for the X-ray sailbot is a challenge, though. A high sectional
Isaac Kuo
May 23
#99181
 
99180

Re: Hybrid Antimatter Ramjet?

As Markus Baur notes, the general concept is known as RAIR. It suffers many of the same problems as the Bussard ramjet, the big deal killer being the extremely
Isaac Kuo
May 23
#99180
 
99179

Flyby another star before 2100

I think it's just about doable to get a probe to do a flyby scan of another star system before 2100. Solar powered FE X-ray laser. Zone plate lens. X-ray
Henry Cobb
May 23
#99179
 
99178

Re: Specs for an alien interceptor

We should be able to detect an interplanetary alien at least six months out. As for tech level let's say 50 years from now. You know, after sustainable fusion
Eric Henry
May 23
#99178
 
99177

(slight off topic) spaceship interior model kits

This is a little off topic for the list, but does anyone know a source for physical model kits for real spaceship interiors? Ideally I'd like to find a model
Stephen Rider
May 23
#99177
 
99176

Re: Hybrid Antimatter Ramjet?

Am 23.05.2015 um 12:48 schrieb Logan Kearsley chronosurfer@... ... literature had several different flavours of that - fusion and antimatter powered the
Baur
May 23
#99176
 
99175

Re: Hybrid Antimatter Ramjet?

On 23 May 2015 at 03:53, Baur baur@... [sfconsim-l] ... Aha. Well, now I know the acronym to look for, it seems Atomic Rockets *does* in fact give it a
Logan Kearsley
May 23
#99175
 
99174

Re: Hybrid Antimatter Ramjet?

the concept is called RAIR (ram augmented interstellar rocket) in the scientific papers .. i remember a few JBIS articles on that.. servus markus Am 23.05.2015
Baur
May 23
#99174
 
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