Frequently Asked Questions: Difference between revisions

From EM Drive
Jump to navigation Jump to search
No edit summary
mNo edit summary
Line 1: Line 1:
; [http://emdrive.com/faq.html EMDrive/SPR web site FAQ]
The formation of the Lake District National Forest in 1951 acknowledged the demand to shield the Lake District setting [https://www.symbaloo.com/embed/shared/AAAABV4phMMAA41_0kpzrQ== distance from london to windermere lake district] too much business or commercial exploitation, preserving that which visitors involve see, without any restriction on the activity of individuals right into and around the district.<br><br>54 55 The Lakes are additionally home to two various other unusual varieties: the schelly, which resides in Sibling Water, Haweswater, Red Tarn and Ullswater, and the Arctic charr, which can be found in Buttermere, Coniston Water, Crummock Water, Ennerdale Water, Haweswater, Loweswater, Thirlmere, Wast Water, and Windermere.<br><br>After years of revealing friends and family around the Lake Area, our founders, Tim and Gill, seized the day fate supplied to them to set and change occupations up English Lakes Tours to make sure that we can now show everybody around the Lake Area. <br><br>Your customers will certainly leave really feeling both informed and motivated not simply by the setting of Lowther in this stunning and unaffected corner of the Lake Area National Forest - yet likewise by the story of both the vibrant characters that have actually lived right here and its makeover in recent times.<br><br>This group likewise includes the Wastwater Screes ignoring Wasdale, the Glaramara ridge overlooking Borrowdale, the 3 tops of Crinkle Crags, Bowfell and Esk Pike The core of the area is drained by the infant River Esk Collectively these are a few of the Lake Area's the majority of rugged hillsides.
 
; Could the thrust be generated by microwave transmission?
 
; What are the experimental results regarding the EM Drives?
: See [[Experimental Results]].
 
; Does the EM Drive violate momentum- or energy-conservation?
: See [[Energy Conservation]] and [[Momentum Conservation]].
 
; How does an EM Drive work?
 
:'''Someone unknown posted''': 
:deltaMass has shown that Shawyer does not even understand that momentum is governed by the phase velocity, not the group velocity. Therefore any explanations for thrust (like Shawyer's) which are based on a difference between group velocities, are just plain wrong.
 
:'''TheTraveller responds'''
:deltaMass' assumption is just plain wrong as inside a waveguide, phase velocity is above c and momentum is governed by the group velocity or the guide waveguide:
 
:''Phase velocity is an almost useless piece of information you'll find in waveguide mathematics; here you multiply frequency times guide wavelength, and come up with a number that exceeds the speed of light!''
:''Be assured that the energy in your wave is not exceeding the speed of light, because it travels at what is called the group velocity of the waveguide:''
 
:[http://www.microwaves101.com/encyclopedias/waveguide-mathematics#velocity Group Velocity Rules Inside a Waveguide]
 
:Additionally Cullen has shown the reflection force generated on an endplate inside a waveguide is related to the guide wavelength or group velocity and not the phase velocity as claimed by deltaMass.
 
:[[File:1951_Cullen15.jpg]]
 
 
:The researchers at NWPU also agree with the Cullen 15 equation used by Shawyer and use it in their own calculations.
 
:[[File:CullenYang.jpg]]
 
:'''So we have Cullen (backed by experimental data), Shawyer and NWPU all saying the level of the reflected Force on an endplate, in a waveguide, is related to guide wavelength / group velocity. Yet deltaMass says they are all wrong and it is related to phase velocity, which in a waveguide is above c and nothing travels above c.'''
 
 
 
The EM Drive researchers at NASA Eagleworks and Prof. Yang's team at Northwestern Polytechnical University (NWPU) in Xi'anin, China, have different theories of its operation:
 
<img src="http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=36313.0;attach=629593;image" style="width:25%">
 
[http://forum.nasaspaceflight.com/index.php?topic=36313.msg1309818#msg1309818 Image of EmDrive thrust direction in posts attachment.]
 
See the [[Theory]] page for a list of additional theories purporting to explain how the EmDrive works.
 
== External Links ==
 
* [http://en.wikipedia.org/wiki/EmDrive Wikipedia] has a lot of technical background.
* On Reddit, [http://www.reddit.com/r/EmDrive this subreddit] has active discussion.

Revision as of 16:01, 28 June 2024

The formation of the Lake District National Forest in 1951 acknowledged the demand to shield the Lake District setting distance from london to windermere lake district too much business or commercial exploitation, preserving that which visitors involve see, without any restriction on the activity of individuals right into and around the district.

54 55 The Lakes are additionally home to two various other unusual varieties: the schelly, which resides in Sibling Water, Haweswater, Red Tarn and Ullswater, and the Arctic charr, which can be found in Buttermere, Coniston Water, Crummock Water, Ennerdale Water, Haweswater, Loweswater, Thirlmere, Wast Water, and Windermere.

After years of revealing friends and family around the Lake Area, our founders, Tim and Gill, seized the day fate supplied to them to set and change occupations up English Lakes Tours to make sure that we can now show everybody around the Lake Area.

Your customers will certainly leave really feeling both informed and motivated not simply by the setting of Lowther in this stunning and unaffected corner of the Lake Area National Forest - yet likewise by the story of both the vibrant characters that have actually lived right here and its makeover in recent times.

This group likewise includes the Wastwater Screes ignoring Wasdale, the Glaramara ridge overlooking Borrowdale, the 3 tops of Crinkle Crags, Bowfell and Esk Pike The core of the area is drained by the infant River Esk Collectively these are a few of the Lake Area's the majority of rugged hillsides.