Units of measurement

[K8MHZ]

kW, not KW.

KW = kelvin watt?

 

[Besoeker]

KW = kelvin watt?

Who is he?

 

[Phil Corso]

Hmmmm...

No takers on "Firkins per Fortnight"?

Phil Corso

 

[Besoeker]

Hmmmm...

No takers on "Firkins per Fortnight"?

Phil Corso

On even one, I'd be pished as a newt every day......

 

[ggunn]

Oh, I like Stouts, then Porters. But I won't turn down a Bass or Newcastle.

Ummmmmmmm... Porters... One of the best I have had recently is made here in Austin - Hops and Grain Porter Culture. Anchor Porter is my benchmark.

 

[K8MHZ]

While we are on the subject, why do we use 'L' for henries instead of H in the formula X(sub)L = 2 pi f L ?

 

[Carultch]

While we are on the subject, why do we use 'L' for henries instead of H in the formula X(sub)L = 2 pi f L ?

L represents the concept of inductance. It is used in honor of Heinrich Lenz, who determined the negative sign in Faraday's law of induction, one of the working principles of a self-inductor.
H represents the Henry unit of inductance.

 

[Adamjamma]

but arent they both referencing the same person? Just the Henry refers to Heinrich, and the L refers to Lenz? The USA to the British??
Kinda like how we refer to a fender yet the british call it a wing... in both cases it came from the most popular swimsuit ads of the 40's ion magazines... well, thirties and forties...British ads were women on the wings of an airplane and American ads were women on the edge of a boat... so the flowing forms of the cars of the forties and fifties referred to the ads...

 

[K8MHZ]

but arent they both referencing the same person? Just the Henry refers to Heinrich, and the L refers to Lenz? The USA to the British??
Kinda like how we refer to a fender yet the british call it a wing... in both cases it came from the most popular swimsuit ads of the 40's ion magazines... well, thirties and forties...British ads were women on the wings of an airplane and American ads were women on the edge of a boat... so the flowing forms of the cars of the forties and fifties referred to the ads...

No, the henry refers to Joseph Henry.

 

[K8MHZ]

L represents the concept of inductance. It is used in honor of Heinrich Lenz, who determined the negative sign in Faraday's law of induction, one of the working principles of a self-inductor.
H represents the Henry unit of inductance.

How would the equation be different if we used H instead of L ?

 

[GoldDigger]

How would the equation be different if we used H instead of L ?

In the same way that an aircraft would fly differently if made from aluminium instead of aluminum.

Sent from my XT1585 using Tapatalk

 

[peter d]

The industrial revolution and empires were built on the imperial system.

 

[drcampbell]

Trans-continental railroads were built on the single-expansion saturated-steam locomotive with a riveted & stayed boiler. We have better alternatives available now.

 

[ggunn]

Trans-continental railroads were built on the single-expansion saturated-steam locomotive with a riveted & stayed boiler.

So was our method of timekeeping.

 

[Besoeker]

The industrial revolution and empires were built on the imperial system.

The British one was. I don't know what other European countries used.

 

[drcampbell]

Some helpful information from the NIST:

General information on weights & measures:
https://www.nist.gov/pml/weights-and-measures/metric-si/si-units

The definitive (90 pages) Guide for the Use of the International System of Units (SI)
https://physics.nist.gov/cuu/pdf/sp811.pdf

 

[sameguy]

No, the henry refers to Joseph Henry.

Or enery the eighth I am
Everyone was a enery
Enery the eighth I am I am

 

[winnie]

'nuff said:

 

[jumper]

'nuff said:

So, at some point we will eventually switch to SI by “Force”?

 

[MAC702]

So, at some point we will eventually switch to SI by “Force”?

Using the dark side: