Can You Identify These Equations on My New Watch?

  • Thread starter Thread starter Chloe Soza
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on identifying various equations displayed on a new watch, primarily related to electrical engineering and quantum mechanics. Key equations mentioned include the transistor gain formula β = ΔIC / ΔIB and the Poynting vector equation \(\vec{S} = \dfrac{1}{\mu_0}(\vec{E} \times \vec{B})\). Additionally, the kinetic energy expression in quantum mechanics, represented as p², is noted. Participants express excitement about the watch's design while sharing insights on the equations.

PREREQUISITES
  • Understanding of electrical engineering principles, specifically transistor operations.
  • Familiarity with quantum mechanics concepts, including kinetic energy and wave functions.
  • Knowledge of vector calculus, particularly in the context of electromagnetic fields.
  • Basic comprehension of physical constants such as ħ (reduced Planck's constant) and μ₀ (permeability of free space).
NEXT STEPS
  • Research the application and significance of the Poynting vector in electromagnetic theory.
  • Study the role of β in bipolar junction transistors and its impact on circuit design.
  • Explore quantum mechanics further, focusing on kinetic energy expressions and their derivations.
  • Learn about the relationship between electrical engineering equations and their physical interpretations in real-world applications.
USEFUL FOR

Electrical engineers, physicists, students in advanced physics courses, and anyone interested in the intersection of technology and fundamental scientific principles.

Chloe Soza
IMG_3527.JPG

I got this awesome new watch with equations on it, but I don't recognize any of them (except E=mc^2 obviously). Anyone know what they could be referring to?
 
  • Like
Likes   Reactions: nuuskur
Mathematics news on Phys.org
You could still somewhat tell the time, the positions of the hands are the same :P
offtopic:
That is an awesome watch! ;)
 
One of them is the Poyinting vector: ##\vec {S} = \dfrac {1}{\mu_0}(\vec{E} \times \vec{B})## (It's the energy per unit time per unite area)
 
I see an expression for kinetic energy in quantum mechanics on the bottom left, namely just the p^2.
 
That equation below the delta IB has 8mL4 in the denominator. I recognize that from quantum mechanics, I think.
 

Similar threads

  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 3 ·
Replies
3
Views
866
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 16 ·
Replies
16
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 54 ·
2
Replies
54
Views
8K
  • · Replies 3 ·
Replies
3
Views
949