Chloe Soza Thread starter Dec 12, 2014 #1 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?
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?
Astronuc Staff Emeritus Science Advisor Gold Member 2025 Award Messages 22,650 Reaction score 7,723 Dec 12, 2014 #2 Looks mostly like electrical engineering and EM equations, e.g., β = ΔIC /ΔIB, which is the transistor gain: http://en.wikipedia.org/wiki/Bipola...ers:_alpha_.28.CE.B1.29_and_beta_.28.CE.B2.29 http://www.learningaboutelectronics.com/Articles/What-is-beta-of-a-transistor I think another equation is E =1/2 ħ √(k/m)
Looks mostly like electrical engineering and EM equations, e.g., β = ΔIC /ΔIB, which is the transistor gain: http://en.wikipedia.org/wiki/Bipola...ers:_alpha_.28.CE.B1.29_and_beta_.28.CE.B2.29 http://www.learningaboutelectronics.com/Articles/What-is-beta-of-a-transistor I think another equation is E =1/2 ħ √(k/m)
nuuskur Science Advisor Messages 929 Reaction score 1,226 Dec 13, 2014 #3 You could still somewhat tell the time, the positions of the hands are the same :P offtopic: That is an awesome watch! ;)
You could still somewhat tell the time, the positions of the hands are the same :P offtopic: That is an awesome watch! ;)
DataGG Gold Member Messages 157 Reaction score 22 Dec 13, 2014 #4 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)
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)
v0rtex Messages 6 Reaction score 1 Dec 13, 2014 #5 I see an expression for kinetic energy in quantum mechanics on the bottom left, namely just the p^2.
leroyjenkens Messages 621 Reaction score 49 Dec 15, 2014 #6 That equation below the delta IB has 8mL4 in the denominator. I recognize that from quantum mechanics, I think.
That equation below the delta IB has 8mL4 in the denominator. I recognize that from quantum mechanics, I think.