Solar Sail Craft Need Laminated Mouse Brains

Navigation computers for spacecraft with solar sails will need to consider relativistic effects, according to a new paper published by Roman Ya. Kezerashvili and Justin F. Vazquez-Poritz.

Responding to an increasing demand for navigational accuracy, we consider a number of general relativistic effects on the escape trajectories of solar sails. For missions as far as 2,550 AU, these effects can deflect a solar sail by as much as one million kilometers. We also find that frame dragging due to the slow rotation of the sun can deflect a solar sail by more than one thousand kilometers.

For example, a solar sail deployed at 0.01 AU (astronomical units - about 93 million miles) can be deflected due to the curvature of spacetime near the sun, while the kinematic effects of special relativity contribute to a lesser degree. Lesser effects include redshifting of sunlight and the slowing down of the passage of time near the sun.

Obviously, we're going to need a very fast and competent computer to act as the pilot - and for that, we're going to need laminated mouse brains.

In his 1962 classic Think Blue, Count Two, Cordwainer Smith writes about special computing devices for solar sail craft on long voyages between the stars.

...Tiga-belax came in, very cheerful indeed... In his right hand there was a black plastic cube wih shimmering contact-points gleaming on its sides. The two technicians greeted him politely.

"I've got that beautiful child taken care of... I've used a mouse-brain."

"If it's frozen," said the first technician, "we won't be able to put in the computer..."

"This brain isn't frozen," said Tiga-belas indignantly. "It's been laminated. We stiffened it with celluprime and then we veneered it down, about seven thousand layers. Each one has plastic of at least two molecules thickness. This mouse can't spoil. As a matter of fact, this mouse is going to keep on thinking forever. He won't think much, unless we put the voltage on him, but he'll think. And he can't spoil..."


(Rat brain cells form organized clusters - a brain chip)

As it turns out, scientists are hard at work creating brain chips with real brains; see Brain Chips With Uniform Self-Organized Neurons for more information.

From MITs Technology Review blog and the original paper Escape Trajectories of Solar Sails and General Relativity.

Scroll down for more stories in the same category. (Story submitted 8/21/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Space Tech ")

Johns Hopkins Says Asteroid Deflection Will Be Difficult
'This obelisk is one huge deflector mechanism...' - Gene Roddenberry, 1968.

Hayabusa 2 To Begin Asteroid Mining
'We must dig down, and then doubtless we shall find the metal.' - Garrett P. Serviss, 1898.

Can Musk Starship Astronauts Use Magnetic Boots?
'Walking awkwardly in the magnetic boots that held him to the black mass of meteoric iron...'

Giant Dolphin Spotted On Jupiter!
'Now at last he could appreciate its real size and complexity...'

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Unfurl The Future! Huawei Mate X versus Galaxy Fold
'A paper thin polycarbon screen unfurled silently from the top of the unit and immediately grew rigid.'

Amazon Echo And Google Home Should Have Morality Software
'The Dwoskin Morality Rating-Computer could 'spot the slightest tendency to deviation' from the social norm...'

China Building Robot Wives
'Want a life-companion, a pleasant one?'

China Social Credit System Like State-Run Whuffie
'At least there was no mandatory Whuffie check on the monorail platform...'

Project Soli Radar Gesture Chip Now FCC Approved
'He waved his hand and the circuit switched abruptly.'

Stan, Robot Valet, Will Drag Your Car Away
'He activated the grapple tracks. '

Jibo Home Robot Says Goodbye, Is Killswitched
'It resembles an oyster....'

Johns Hopkins Says Asteroid Deflection Will Be Difficult
'This obelisk is one huge deflector mechanism...'

Fabric Automatically Cools Or Insulates Based On Environment
'...a high-efficiency filter and heat-exchange system.'

Deepfakes From OpenAI GPT-2 Algorithm
'How can you compete with an IBM heavy-duty logomatic analogue?'

John Deere Self-Driving Tractor
'The huge plow... seemed to shake itself - and began to move back southward.'

North Focals Smart Glasses Provide Augmented Reality In Style
'The world ... is drenched in unfamiliar information all the way to the horizon.'

Tesla Driver Caught Napping Behind The Wheel
'Mary Risling settled back for a little nap...'

Hayabusa 2 To Begin Asteroid Mining
'We must dig down, and then doubtless we shall find the metal.'

Ionocraft Drone Powered By Electrohydrodynamic Thrust
'He saw one hiss by him as he rounded the corner, trailing a short whip antenna...'

Purdue Pharma Ready To Profit From OxyContin Use Or Addiction Recovery
'It may be organic damage. It may be permanent. Time'll tell, and only after you are off Substance D for a long while.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.