Time to punch the monitor!
Punching the programmer would probably be a better idea, in this instance .
Apparition is the only way to travel ..... Pity it doesn't work for us Muggles though....
Tell that to my kids (or cats) when they seem to pop up in the middle of the night - out of nowhere
More Apparition
Harry followed, but Disney did not like it!
Harry Potter Day at Disneyland
Bill
Hi Bill,
>snip<
To the Universal Studios theme parks, actually .
Apparition is the only way to travel, much better than using a broom, Floo Powder or a Portkey. Pity it doesn't work for us Muggles though, not even with Quantum Mechanics .
Kind regards,
David
Harry followed, but Disney did not like it!
Harry Potter Day at Disneyland
Bill
Punching the programmer would probably be a better idea, in this instance .
Careful what you ask for my friend!
Harry followed, but Disney did not like it!
Harry Potter Day at Disneyland
Hi Bill,
Thanks for the link - very interesting. I guess the Harry Potter fans were lucky to be allowed into Disneyland at all, given that Warner Bros. made the movies .
I must admit that I was quite surprised when I first learnt that TimeWarner had won the film rights. I had automatically assumed that it would be Disney - I am pretty sure it would have been, if Walt was still around.
Kind regards,
David
Tell that to my kids (or cats) when they seem to pop up in the middle of the night - out of nowhere
One of your cats is not Professor McGonagall in disguise, by any chance? .
Careful what you ask for my friend!
.
Punching the programmer would probably be a better idea, in this instance .
That would upset the BL! HR = DMB to the infinite power!
Things Quantum
David,
Here is a far more interesting read:
Have We Been Interpreting Quantum Mechanics Wrong This Whole Time? | WIRED
Regards,
Bill
Hi Bill,
Thanks for the link - very interesting. I guess the Harry Potter fans were lucky to be allowed into Disneyland at all, given that Warner Bros. made the movies .
I must admit that I was quite surprised when I first learnt that TimeWarner had won the film rights. I had automatically assumed that it would be Disney - I am pretty sure it would have been, if Walt was still around.
Kind regards,
David
David,
Here is a far more interesting read:
Have We Been Interpreting Quantum Mechanics Wrong This Whole Time? | WIRED
Regards,
Bill
Hi Bill,
It all just seems like magic to me .
Quantum Mechanics is one of the things that I have great difficulty in getting my head around. That, together with the size of the Universe .
Kind regards,
David
As far as I understand, the universe is big.
Really big.
Then think bigger er.
Interesting article Bill.
Articles like these tend to make me wonder why so many ideas that are supposed to be decided scientifically analysed and weighed on their merits don't get the attention they deserve. What seems to be the case is that they the prevailing winds of thought are more ego driven than anything else.
One observation I had back in 1979.
The universe is 5 billion years old.
Now 36 years later it is 13 billion years old.
Talk about rapid aging!
Really big.
Then think bigger er.
Interesting article Bill.
Articles like these tend to make me wonder why so many ideas that are supposed to be decided scientifically analysed and weighed on their merits don't get the attention they deserve. What seems to be the case is that they the prevailing winds of thought are more ego driven than anything else.
One observation I had back in 1979.
The universe is 5 billion years old.
Now 36 years later it is 13 billion years old.
Talk about rapid aging!
Tangible Model
Did you view this? Bill
https://www.youtube.com/watch?v=1-_IRbu1gAo&feature=player_embedded
Hi Bill,
It all just seems like magic to me .
Quantum Mechanics is one of the things that I have great difficulty in getting my head around. That, together with the size of the Universe .
Kind regards,
David
Did you view this? Bill
https://www.youtube.com/watch?v=1-_IRbu1gAo&feature=player_embedded
Bangs, Big and Small
It is at the dimensional extremes that everything behaves in a non-Newtonian manner; whether infinitely small or infinitely large. The universe may simply undergo transitions from one of these states to the other and we just get to measure the span of the current epoch only; so for us, it is just a "Big Bang" for now.
Bill
As far as I understand, the universe is big.
Really big.
Then think bigger er.
Interesting article Bill.
Articles like these tend to make me wonder why so many ideas that are supposed to be decided scientifically analysed and weighed on their merits don't get the attention they deserve. What seems to be the case is that they the prevailing winds of thought are more ego driven than anything else.
One observation I had back in 1979.
The universe is 5 billion years old.
Now 36 years later it is 13 billion years old.
Talk about rapid aging!
It is at the dimensional extremes that everything behaves in a non-Newtonian manner; whether infinitely small or infinitely large. The universe may simply undergo transitions from one of these states to the other and we just get to measure the span of the current epoch only; so for us, it is just a "Big Bang" for now.
Bill
Did you view this?
I have now . Fascinating stuff indeed.
David I have been able to use some of the new features.
I like it!
I like it a lot!
Have a bit of a question in setting up a compound horn.
Bill Geiger has presented a interesting mass loaded tapped horn that I have been able to model correctly once.
Then my computer crashed and I have not been able to do it again.
Stupidity on my part.
The compound horn requires quite a large compression chamber to be modeled correctly.
I like it!
I like it a lot!
Have a bit of a question in setting up a compound horn.
Bill Geiger has presented a interesting mass loaded tapped horn that I have been able to model correctly once.
Then my computer crashed and I have not been able to do it again.
Stupidity on my part.
The compound horn requires quite a large compression chamber to be modeled correctly.
Hi Mark,
I'll attach what I would consider a typical CH simulation. How did you get the tapped horn feature (front-to-back foldback) of whgeiger's design into a Hornresp compound horn?
Regards,
P.S.: I added whgeiger's design pdf.
I'll attach what I would consider a typical CH simulation. How did you get the tapped horn feature (front-to-back foldback) of whgeiger's design into a Hornresp compound horn?
Regards,
P.S.: I added whgeiger's design pdf.
Attachments
Last edited:
I did think on this after read quantum article, things are different then we think.
https://www.youtube.com/watch?v=5WV1SMoVYDM
But is little offtopic so back to compound horns.
https://www.youtube.com/watch?v=5WV1SMoVYDM
But is little offtopic so back to compound horns.
Hi Mark,
So, what is the question? .
Why do you call it a "mass loaded" tapped horn?
The simulation model developed by Oliver and linked in the post below is probably as close as you are going to get to Bill's design, using Hornresp.
http://www.diyaudio.com/forums/subw...binet-16-hz-organ-speaker-35.html#post4443937
Bill's suggested "reentrant" tapped horn design should not be modelled as a compound horn. A standard Bose Acoustic Wave Cannon type design on the other hand, should be.
Kind regards,
David
Have a bit of a question in setting up a compound horn.
So, what is the question? .
Bill Geiger has presented a interesting mass loaded tapped horn that I have been able to model correctly once.
Why do you call it a "mass loaded" tapped horn?
The simulation model developed by Oliver and linked in the post below is probably as close as you are going to get to Bill's design, using Hornresp.
http://www.diyaudio.com/forums/subw...binet-16-hz-organ-speaker-35.html#post4443937
Bill's suggested "reentrant" tapped horn design should not be modelled as a compound horn. A standard Bose Acoustic Wave Cannon type design on the other hand, should be.
Kind regards,
David
Bose vs. Reflex AWC's
The Bose AWC design still remains as you describe. My implementation (RAWC) is closer to a tapped horn to get to a shorter physical length for the same acoustical length and to get the combined output coming out a single end. WHG
did Bose change the design of the wave cannon? I recall it used to be a tube with two open ends and a driver.
The Bose AWC design still remains as you describe. My implementation (RAWC) is closer to a tapped horn to get to a shorter physical length for the same acoustical length and to get the combined output coming out a single end. WHG
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