Comments on: The EmDrive: What Physics Says is Impossible

By: Burton Boehm

Sat, 03 Dec 2016 01:50:00 +0000

This is going to be launched into space low Earth orbit less then 150 miles in the early part of 2017 by the inventor Guido Fetta, The Cannea Drive. I myself a retired Boeing engineer did my due diligences on the study of this EmDrive and all the Scientist and engineers that were involved. I am quite confident that this will work. And it will usher in a whole new age of science and discovery.

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By: Len Rosen

Fri, 02 Dec 2016 16:58:00 +0000

In reply to AlainCo.

One can refute Newton’s laws of physics. Prior to Newton we had entirely different ideas about the way things work. And after Newton we had Einstein question Newton’s basic theories. I am sure as we try to understand and replicate physical phenomena for which our existing “laws” apply we will come to new truths.

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By: Len Rosen

Fri, 02 Dec 2016 16:56:00 +0000

In reply to Gabriel.

Thanks for doing the math. The figures quoted in the posting come from the journal article describing the experiment.

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By: Gabriel

Fri, 02 Dec 2016 16:07:00 +0000

>> that’s enough to accelerate an object weighing 0.45 kilograms (1 pound) to a speed of 1.6 kilometers (1 mile) per hour in 6 minutes

The time numbers don’t square if I am not wrong:

A weight of 0.45 Kg has a mass of (0.45 Kg weight / 9.8) = 0.0459 Kg

Normalizing speed, V = 1.6 Km/h = 1.6 * (1000/3600) = 0.4445 m/s

For a force of 1.2 mN, since F = m * v / time

time = (m * v) / F = (0.0459 * 0.4445) / 0.0012 = 17 seconds

(6 minutes is aproximately the result for a mass of 1kg)

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Update:

Maybe I should take the weight (a force) unit, since it is in Kg, as Kilograms-force https://en.wikipedia.org/wiki/Kilogram-force, then

time = (0.45 Kg * 0.4445 m/s) / (0.0012 N) = 166.6875 seconds = 2.778 minutes

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By: AlainCo

Thu, 01 Dec 2016 09:28:00 +0000

This paper refer to many other experiments…
Many explanations have been proposed, but if ytou read the details of the cross testing done by shawyers on histes, by March in that test, it does not match.

thermal expansion is interesting and credible, until you notice that introducing dielectric on one side invert the direction.

many artifact are incompatible with test that show no thrusts out of the resonance (Shawyer and yang juan did that)…

What I dislike in general reactions is that eveybody focus on theories, criticizing the theory and not the experiment, or refuting experiment with theory.
This is for me the sign of scientific decadence…

There are tons of artifact to verify with good experiments requiring modest but real budgets (not shoestring as usual).

Also what i dislike is that most comments ignore the works of other replicators, like in china, by tajmar… his previous work too. of Fetta’s Cannae drive and his Theseus project.

and most of all even when choosing the theory they mostly ignore MiHsC which beyond Emdrive attack seriously the unscientific characteristic of Dark Matter theory.

Like on LENR when Mainstream media covers inconvenient anomalies, they show awful behaviors :
– focus on US evidences only, ignore previous experiments, foreign data… no perspective.
– focus on the worst theory, seldom on experiment. ignore better and more conservative theories.
– criticize theory not experiment, use theory to criticize experiment
– never consider that if the experiment is not perfect, thsi demand MORE budget and not LESS

I partly interpret that as lack of due diligence as it seems journalist don’t have 5 minute to google…
It is also a syndrome of academic cowardliness, where uncertainty in result imply reduction of research budget.

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By: The EmDrive: What Physics Says is Impossible | ...

Thu, 01 Dec 2016 09:08:46 +0000

[…] Space engine defies Newton's third law producing enough thrust to move a 0.45 kilo object from zero to 1.6 kilometers speed in 6 minutes. […]

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