Difficulties with motion sickness, Mechanical Engineering

In designing rotating space stations to give for artificial-gravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the negative effects of motion sickness start to appear when the rotational motion is faster than approximately 1.5 revolutions per minute. On the other hand, the magnitude of the centripetal acceleration at the astronauts' feet should equal the magnitude of the acceleration due to gravity on earth. Therefore, to eliminate the difficulties with motion sickness, designers must choose the distance among the astronaut's feet and the axis about which the space station rotates to be greater than a certain minimum value. What is this minimum value?

Posted Date: 3/15/2013 8:17:02 AM | Location : United States







Related Discussions:- Difficulties with motion sickness, Assignment Help, Ask Question on Difficulties with motion sickness, Get Answer, Expert's Help, Difficulties with motion sickness Discussions

Write discussion on Difficulties with motion sickness
Your posts are moderated
Related Questions

A single plate clutch, effective on both sides is needed to transmit 25 KW at 3000 r.p.m. Calculate the outer and inner diameters of frictional surface if the coefficient of fricti

Q. General corrosion rates of castings? Austenitic stainless steels (300 series) are very resistant to caustic in concentrations up to 50% and temperatures below 200 o F (95 o

Tensile and Compressive Force: T ensil e Forces A force, that pulls the body, is called as tensile force. Here member AB is tension member carrying tensile force P. As

(a) Following consideration were recorder during a test on a single cylinder oil engine : Bore = 300 mm; speed =300 r.p.r.; stroke = 450 mm;  net break load = 1.5KN;


Differentiate between hot working and cold working process

Kineti c (Dynamic) Friction: When applied force exceeds limiting friction the body starts moving over the other body and the friction of resistance experienced by the body a

Level of Safety Organization This level comprises representatives of safety departments working at shop floor level or along with workers. The personnel will in fact implement

Evaluate stress in fibre: Example, the matrix material can be stressed to its full strength of 80 MPa, calculate the allowable % of broken fibres. What will be the stress in f