It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
originally posted by: Kashai
The obvious real problem the position of my detractor is has not provided a shred of evidence that his or her position is actually relevant. in consideration that the Max Plank Institute, is making it, obvious that such a position makes no sense.
Unless of course, the Max Planks Institute wishes to offer a detraction due to correspondence with my detractor, her she wishes to offer evedence to that effect.
Otherwise what Phage said is contemplatively BS.
He also calculated that a sail measuring about 320 km (200 miles) in diameter could reach Proxima Centauri in just over 12 years. Meanwhile, a sail measuring about 965 km (600 miles) in diameter would arrive in just under 9 years.
The total duration of interstellar travel would be 75 years from the solar system to α Cen A and B and another 46 years on to Proxima b, adding up to 121 years.
A space probe with a weight of only a few grams (communication, navigation, propulsion, science instruments) attached to an ultra-light, highly refective foil could permit interstellar cruising speeds of several percent of the speed of light (c). The kinetic energy could be gained from a ground-based laser array shooting at the lightsail in a near Earth orbit or from the solar photon pressure .
since when was speeding up easier than slowing down?
I don't usually find ignorance funny. For you, I'll make an exception.
You gotta admit that is funny
Acceleration, in physics, is the rate of change of velocity of an object with respect to time. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law. The SI unit of acceleration is meter per second squared (m s−2). Accelerations are vector quantities (they have magnitude and direction) and add according to the parallelogram law. As a vector, the calculated net force is equal to the product of the object's mass (a scalar quantity) and its acceleration.
deceleration (countable and uncountable, plural decelerations)
(uncountable) The act or process of decelerating.
The rocket is now in deceleration.
(countable) The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity).
The brakes produce a deceleration of 10 meters per second per second.tps://en.wikipedia.org/wiki/Acceleration
Ignorant of the physics involved which is the context in which I used the word, yes, that is what I said. Your source:
So you saying I am ignorant because I do not understand that acceleration and deceleration are the same things?
Acceleration, in physics, is the rate of change of velocity of an object with respect to time.
It takes the same amount of energy to increase the velocity of a mass that it does to decrease its velocity the same amount.
accelerating is consistently less difficult than decelerating.
Can you point out where I said otherwise?
The fact of the matter is, that it is possible to decelerate to a stop with a solar sail and there are practical conclusions to that effect.
IKAROS (Interplanetary Kite-craft Accelerated by Radiation Of the Sun) is a Japan Aerospace Exploration Agency (JAXA) experimental spacecraft. The spacecraft was launched on 21 May 2010, aboard an H-IIA rocket, together with the Akatsuki (Venus Climate Orbiter) probe and four other small spacecraft. IKAROS is the first spacecraft to successfully demonstrate solar sail technology in interplanetary space.
On 8 December 2010, IKAROS passed by Venus at about 80,800 km (50,200 mi) distance, completing the planned mission successfully, and entered its extended operation phase.