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This Odd Thing A Stupid Person (Me) Noticed. Explain Please!

physics mathmatics question

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#1 Krelik

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Posted 11 April 2018 - 03:15 PM

Why? Pi/C ( or some call V ) = 1.0?

I can't remember why I typed that into my calculator, and google was no help.

Is there anything interesting or can be said involving this?

or is it just random?



#2 exchemist

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Posted 12 April 2018 - 01:18 AM

Why? Pi/C ( or some call V ) = 1.0?

I can't remember why I typed that into my calculator, and google was no help.

Is there anything interesting or can be said involving this?

or is it just random?

What are "C" and "V"? I am not familiar with these as standard symbols for any physical or mathematical constant.



#3 Krelik

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Posted 12 April 2018 - 11:44 AM

C and or V mean speed of light. Sorry I just googled it, I didn't know before then either.

So what I'm asking is, why? is there anything to be said about? or is it random? that

Pi (3.14...) divided by the speed of light 299 792 458 ( some just say 300 000 000, and other edge lords say something else)

equals = 1.0..... 

I find this very peculiar and would like some one to inject some facts into the subject.

Thank you!


Edited by Krelik, 12 April 2018 - 11:48 AM.


#4 pzkpfw

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Posted 12 April 2018 - 02:13 PM

It's not 1, it's 0.000000010479225

A small number divided by a big number.

You're likely being confused by the way your calc displayed the result.

1.0479225x10^-8 (more or less)

It happens to have 1 as first digit as pi starts with 3 and C is "close" to 300000000 m/s.

#5 exchemist

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Posted 12 April 2018 - 02:29 PM

C and or V mean speed of light. Sorry I just googled it, I didn't know before then either.

So what I'm asking is, why? is there anything to be said about? or is it random? that

Pi (3.14...) divided by the speed of light 299 792 458 ( some just say 300 000 000, and other edge lords say something else)

equals = 1.0..... 

I find this very peculiar and would like some one to inject some facts into the subject.

Thank you!

Well it should be obvious to anyone remotely numerate that 3.14..... divided by 3 does NOT equal 1. 

 

So there is nothing significant at all here.  


Edited by exchemist, 12 April 2018 - 02:29 PM.


#6 Krelik

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Posted 12 April 2018 - 03:36 PM

goddamn you windows calculator. I did realize it didn't make any sense in my head. What's the point of displaying it like that? It does that with longer numbers? if you want to follow this any more, i realize it's very dumb.



#7 pzkpfw

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Posted 12 April 2018 - 10:28 PM

It's a very normal notation style; in this case due to the large number of zeros between the decimal point and the first significant digit.

e.g. It's more convenient to see 1.234e-20 than 0.00000000000000000001234

(eN as used in calc to represent x10N)

The real lesson here is that your calculator did not just show "1", it showed something you didn't recognise, but you ignored the stuff you didn't recognise and then jumped to a wrong conclusion.
 


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#8 hazelm

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Posted 27 May 2018 - 08:44 AM

pzkphw,  please turn that poor kitten loose.  His head is hurting.  Calculus?  Heaven forbid!  :help:



#9 pzkpfw

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Posted 27 May 2018 - 10:15 PM

pzkphw,  please turn that poor kitten loose.  His head is hurting.  Calculus?  Heaven forbid!  :help:

 

Nobody has mentioned calculus.



#10 hazelm

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Posted 28 May 2018 - 03:54 AM

Nobody has mentioned calculus.

Cats are smart.  He knows what is coming. :-)

 

Seriously, I am glad this thread appeared.  I did not know that about the calculator either.  Now I know.  Thank you.



#11 exchemist

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Posted 28 May 2018 - 07:51 AM

Cats are smart.  He knows what is coming. :-)

 

Seriously, I am glad this thread appeared.  I did not know that about the calculator either.  Now I know.  Thank you.

This reminds me of our late friend "current", a.k.a "river", who infested this forum for a short time while banned from sciforums. 

 

I had the attached exchange with him, there, at one point...:http://www.sciforums...-9#post-3369524:winknudge:



#12 hazelm

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Posted 28 May 2018 - 08:43 AM

Cats are such charming creatures.  I miss my little furball.  

 

Good morning, exchemist.  And you, too, pzkphw. 





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