It is currently Sat Sep 21, 2019 9:40 am


Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Thu Mar 14, 2019 5:28 pm 
Offline

Joined: Tue Dec 05, 2017 11:53 am
Posts: 495
Here is a fact that people get WRONG almost every single time, people say "this is a quantum leap in technology" or similar, when in fact a QL is the SMALLEST leap, therefore people are in fact saying "This is a very small leap in technology", believing a QL to be a BIG leap.

WRONG................................In physics, a quantum leap or quantum jump is a change of an electron from one energy state to another within an atom...............Some people think that a quantum leap is a particularly large leap.

This is incorrect. In fact, in quantum physics, where the expression came from, a quantum leap is usually a very tiny leap indeed, often smaller than the diameter of the nucleus of an atom.

_________________
Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you


Last edited by skyhawk on Fri Mar 15, 2019 6:56 pm, edited 1 time in total.

Top
 Profile Send private message  
 
PostPosted: Thu Mar 14, 2019 7:33 pm 
Offline

Joined: Sun May 11, 2008 6:11 pm
Posts: 3246
Location: Portslade, Sussex Lat 50deg 51min Long 0deg 13mins West
And should not "to decimate" mean to kill one tenth of a group of people and not to massacre nearly all of them.? And the thin Moon after New should be a crescent as it is growing bigger but the very thin old Moon should perhaps be a decrescent, as it is decreasing. This word does exist...I try to use it when appropriate! Regards maf


Top
 Profile Send private message  
 
PostPosted: Fri Mar 15, 2019 9:07 am 
Offline

Joined: Tue Dec 05, 2017 11:53 am
Posts: 495
mike a feist wrote:
And should not "to decimate" mean to kill one tenth of a group of people and not to massacre nearly all of them.? And the thin Moon after New should be a crescent as it is growing bigger but the very thin old Moon should perhaps be a decrescent, as it is decreasing. This word does exist...I try to use it when appropriate! Regards maf



Two more words used that people can never get in the right context

Less and Fewer

_________________
Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you


Last edited by skyhawk on Fri Mar 15, 2019 6:57 pm, edited 1 time in total.

Top
 Profile Send private message  
 
PostPosted: Fri Mar 15, 2019 10:01 am 
Offline

Joined: Fri Dec 03, 2004 2:41 pm
Posts: 1448
Location: 55° 57'N: 03° 08'W
...and what about "parabolic flight"?


Top
 Profile Send private message  
 
PostPosted: Fri Mar 15, 2019 4:46 pm 
Offline

Joined: Mon Jan 18, 2010 9:25 am
Posts: 5296
Parabolic flight was something I was kindly informed by Stella as being wrong.

Even in University it wasn't challenged, so far as I remember, with studies of orbits, but it is well over fifty years ago and I cannot remember.

Comets can have parabolic orbits or at least near, and also hyperbolic orbits.
But even these orbits are changed by passes into stellar systems.

Not on topic, but over the last ten days there have been perhaps six gales with gusts of 57mph at least, and probably considerably higher.
When the sky was clear, especially after sunset, the transparency was exceptionally good.
Usually it is this good maybe twice a year.
There have been at least five such nights in the past ten days.
Even here the sky just above the horizon had little colour, and the Sun was almost undetectable when hidden by a tree.

Regards,
David


Top
 Profile Send private message  
 
PostPosted: Fri Mar 15, 2019 6:54 pm 
Offline

Joined: Tue Dec 05, 2017 11:53 am
Posts: 495
stella wrote:
...and what about "parabolic flight"?




https://www.youtube.com/watch?v=1ieR8hIXUIg

:)

_________________
Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you


Top
 Profile Send private message  
 
PostPosted: Fri Mar 15, 2019 6:55 pm 
Offline

Joined: Tue Dec 05, 2017 11:53 am
Posts: 495
David Frydman wrote:
Parabolic flight was something I was kindly informed by Stella as being wrong.

Even in University it wasn't challenged, so far as I remember, with studies of orbits, but it is well over fifty years ago and I cannot remember.

Comets can have parabolic orbits or at least near, and also hyperbolic orbits.
But even these orbits are changed by passes into stellar systems.

Not on topic, but over the last ten days there have been perhaps six gales with gusts of 57mph at least, and probably considerably higher.
When the sky was clear, especially after sunset, the transparency was exceptionally good.
Usually it is this good maybe twice a year.
There have been at least five such nights in the past ten days.
Even here the sky just above the horizon had little colour, and the Sun was almost undetectable when hidden by a tree.

Regards,
David



I was told off by a MOD for posting OFF topic

_________________
Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you


Top
 Profile Send private message  
 
PostPosted: Fri Mar 15, 2019 7:08 pm 
Offline

Joined: Fri Dec 03, 2004 9:58 pm
Posts: 3540
Location: Wellingborough
David mentions comets, orbits and stellar systems in his post. As far as I know these are astro topics :D

Meteorology, especially seeing/atmospheric related items affecting observing should in my opinion be allowed in astro-discussions.

Just my 2p :)

_________________
Brian
52.3N 0.6W
Wellingborough UK.

254mm LX90 on Superwedge, WO ZS66SD, Helios 102mm f5 on EQ1, Hunter 11x80, Pentax 10x50
ASI120MC Toucam Pros 740k/840k/900nc mono, Pentax K110D
Ro-Ro roof shed


Top
 Profile Send private message  
 
PostPosted: Sat Mar 16, 2019 1:21 pm 
Offline

Joined: Tue Dec 05, 2017 11:53 am
Posts: 495
Brian wrote:
David mentions comets, orbits and stellar systems in his post. As far as I know these are astro topics :D

Meteorology, especially seeing/atmospheric related items affecting observing should in my opinion be allowed in astro-discussions.

Just my 2p :)


On that note you only need "one" sub heading on the whole forum, Astronomy, THESE are ALL Astronomy

Observing
Gallery
Imaging techniques
General chat
Absolute beginners
Telescopes and instruments
Light pollution
Computers and astronomy
Classifieds

I started a post in Astronomy general chat aimed at Here is a fact that people get WRONG almost every time anyone can start a separate thread or what is the point.

Sorry

NO disrespect to DF I am replying to a response and would not have, had it not come up.

_________________
Celestron 8" Edge HD Evolution, Esprit 120mm triplet, 72mm APO, Sky Tee 2, 6" reflecting scope, William Optics Binoviewer, Quark Daystar Ha Chromosphere on 72mm ED, LVW8mm eyepiece and Celestron 19mm Axiom, matched W.O 10 and 20mm, and a few others, D4s, D810,

For info, I am Autistic, Aspergers, ADHD, therefore if I come over as a little "short" on occasions it is not intended, thank you


Top
 Profile Send private message  
 
PostPosted: Sat Mar 16, 2019 2:52 pm 
Offline

Joined: Sun May 11, 2008 6:11 pm
Posts: 3246
Location: Portslade, Sussex Lat 50deg 51min Long 0deg 13mins West
'Decimated' as a term really is off topic, sorry...but the 'crescent/decrescent' for phases of the Moon is completely on topic.
I think that these completely washed out nights are making us, at least me, crazy...maf.


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group