i searched Steven weinberg in google scholar.
it returns many articles but "a model of leptons"
why does "a model of leptons" not appear in google scholar?
is there some mistake or some reason for it not to appear?
it seems odd that the famous articles is not found
Phys. Rev. Lett. 19, 1264...
I thought i should have uploaded a photo of a thing i built but usb port malfunction deterred me.
By increasing C2 value I managed to jam FM 95.9Mhz from my radio without knowing why it works.
i suspect low peak and wide bandwidth due to low q factor of variable capacitor C1 lead to make...
A circuit is here.
I built this circuit. People say a frequency is determined only by tank circuit and C2 is nothing to do with the frequency.
But when i change C2 value, the output frequency changes.
for example when C2 is 6pF 150Mhz, 12pF 120Mhz 18pF 108 Mhz.
why is this happening?
i'm...
This is second build.
When i first build circuit, somehow frequency didn't go up over 80Mhz. so i was dire to find smallest trimmer.
soldered desoldered capacitors and inductors several tens of times before.
by the way is it correct to connect ground of a probe to - of a battery and a lead of...
An oscilloscope showing
CH1 f=155Mhz.
using FFT mode i can see two peaks. one at 155Mhz one at 344Mhz
dialing the trimmer, i see that frequency changes in range between 155Mhz to 175Mhz.
What is a cause of 344Mhz peak?
Currently i used maximum capacitance 10pF trimmer. if i use 3 time larger...
i'm building fm radio jammer for project for my ee class in physics department.
a circuit is here.
http://www.circuitstoday.com/fm-radio-jammer
i bought the components, soldered on PCB.
it hasn't worked.
an oscilloscope shows sine oscillation even if there is no L and C for tank circuit...
I want to replace an adaptor for some appliance.
The part that is sold in an official website of the product is expensive.
So I'm looking for compatible models.
Is it usually OK to only consider matching Output Voltage and current?
S018QU2400050 is written on the apator.
I think 24 stands...
Thanks.
your post is the answer.
What I always feel after seeing a solution of a problem is a regret that why I haven't come up with this idea.
Do you have some way to prevent this regret?
Homework Statement
see the pictures
Homework EquationsThe Attempt at a Solution
one.
In the third picture.
3rd line and 4th line. i don't understand why 1-e^(-t^2/n^2) become (1+t^2)/n^2
two.
I'm not familiar with proving equality by showing difference going to zero.
for example, I prove...
I'm an international student.
I didn't know that not waiving the right makes the letters less effective. There was no warning sign.
I just randomly chose no and consistently did so for all my applications.
And one professor already sent a letter.
How much will this hurt my application...
For example
Griffiths' Electrodynamics, and Quantum Mechanics seems popular.
and the prices are expensive.
I'm curious about how much money the author make by selling these books.
I live in a country within north east asia.
I want to continue my education in US graduate school.
GPA 4.0x/4.5
Physics GRE 990/990
No research experience.
What university within what ranking should i apply to ?
Is it possible to first get master degree in US then apply for better PhD...
"In all potentials I solved Schroedinger Equation for, gap between bound energies gets smaller at higher energy."
Oh,I have to insert some words to above sentence. I didn't mean it.
"In all potentials I solved Schroedinger Equation for, As potential get wider/narrower, gap between bound energies...
"space between energy levels" here i used the word space to mean gap between energies.
In all potentials I solved Schroedinger Equation for, gap between bound energies gets smaller at higher energy.
But what guarantee that that would hold for potentials which I didn't solve SE for?
i.e. It...
More wider potential, More spatially spreaded wavefunction.
More spatially spreaded, Less space between bound state energies.
Is this what you mean?
Is there something like theorem which states second line of my quick reply?
When do you meet this problem first?
What book should I refer to?