
Before posting anything, please review the Physics Forums Global Guidelines.
Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,904 
Anyone know what a spoiler on a car does? Thanks in advance.

Oct1605 03:21 PM
zcomponent

1 
1,675 
Hello,
I've been working for a while with the following wave equation PDE:
\
In preparation for the...

Aug310 03:26 PM
nkinar

16 
2,474 
Hi all, is there an efficient way of splitting both of these waves of sunlight?? I've came across this link and...

Jan312 08:27 AM
hyderjoe

8 
1,929 
Is it possible to split a single light beam into two beams of opposite circular polarization?
A properly oriented...

Jul2212 11:06 PM
Simon Bridge

1 
555 
how to calculate induced emf in split ring resonator SRR of Metamaterial.
what are the values of inductance...

Dec2110 10:58 AM
Sana5643

1 
2,044 
I have three different liquids l1, l2 and l3 stored for 10 days. The liquid are required to be kept in temp x1, x2 and...

Dec1412 06:46 AM
sandeepbwes

0 
403 
Hi eveyone, I am new to this forum and I hope that I can gain lots from this forum.
Recently, one question comes...

Sep1312 09:53 PM
Jolb

1 
571 
Hello, I'm in desperate need of some help with a problem regarding spiral motion. If a particle moves along a spiral...

Jun1412 07:03 PM
haruspex

20 
4,945 
Hi All! This is my first real post here.
I have a pretty basic question regarding rotating objects and the manner...

Aug304 01:53 PM
shadow12345

1 
4,697 
I was watching a physics lecture and the instructor made the statement that "for a given mass, decreasing the diameter...

Nov1611 12:51 PM
csmcmillion

6 
1,302 
Hello, I have a question about a spinning symmetric top:
When the equations of motion are solved, they are solved...

Aug2710 12:30 AM
darkSun

8 
2,201 
Suppose you have a symmetric top precessing and nutating under the torque due to gravity. My question is this: does...

Nov1809 12:58 PM
techmologist

2 
1,817 
Do you get sweets called Skittles in America, or the rest of the world?
...

Dec405 08:01 AM
Cexy

5 
6,828 
Sir,
Why does a spinning top precess only when its axis is inclined to the vertical direction of the...

Feb1206 08:35 AM
Doc Al

1 
1,159 
ok so i've got the three components of the inertia tensor (A,A,C) and ive derived expression for, using matrices, the...

Jun1308 12:29 PM
latentcorpse

2 
2,135 
If a dancer who balances on one leg starts spinning, is having the center of mass above the point of contact enough,...

Aug1310 12:19 PM
Dr Lotso'watts

6 
1,167 
Everyone has seen a spinning top in action, and maybe some of you have also seen how they're able to stabilize...

Jan1812 04:52 AM
torquil

3 
822 
What effect does rotation have on a sphere moving through a fluid (liguid or gas) when travelling along the axis of...

Feb1611 01:54 AM
traveller444

4 
1,478 
Hello everybody.
I have to admit that I feel quite troubled since long time, actually since I read the solution of...

Aug812 09:42 AM
mfb

8 
1,018 
The other day, my professor mentioned projectiles have a force on them due to their spin. The example he gave is how a...

Sep208 12:53 PM
pimpalicous

4 
3,910 
I'm trying to understand the spinning egg phenomenon. That is, why does a hardboiled egg (or any solid ellipsoid)...

Mar1413 11:50 AM
hapefish

0 
709 
Trying to analyze all the dynamics of gyroscopic type motion.
Assume the Z axis is vertical (which the wheel...

Dec1310 11:18 AM
Cleonis

2 
2,189 
Consider the following object:
http://www.lowfuss.com/peter/hosting/Xpost200912/Block.png
The exact dimensions...

Jun2409 04:39 AM
rcgldr

8 
2,846 
can someone explain to me how can it be proof that the spinningroomartificialgravity, actually works?
i mean,...

Nov1109 09:32 AM
YellowTaxi

5 
942 
Hey all, I'm doing research on scoliosis and one thing that gets me is understanding the physics behind a bow and...

Sep507 08:54 AM
Danger

6 
2,203 
Hi.
Can anyone explain to me what spinup effects are? The context is a waterwheel that consists of an ordinary...

Apr1506 07:24 AM
arildno

3 
1,722 
Hi!
I'm from sweden so my english isnt very good, well over to the physic questions:
I'm qurrently making a...

Apr807 02:23 PM
lpfr

3 
1,750 
why would a hard boiled egg spin and raw egg wont if made to spin on a flat surface?

Dec711 06:18 AM
Tricks67

4 
1,269 
do the electrons have spin angular dipole momentum? (In classical mechanics, the spin angular momentum of a body is...

Sep1607 03:39 AM
olgranpappy

4 
1,574 
My Experiment consists of two balls of different masses falling together in the y axis from the same fixed height.Im...

Oct2306 09:42 AM
GreenSabbath

6 
2,353 
So energy can only be converted... So when you squeeze the bulb on a blood pressure cuff, you are applying kinetic...

May1813 09:18 AM
pnorm91

2 
418 
what do we mean when we sy the speed of spherical waves is v

Oct2907 06:43 PM
rbj

10 
2,071 
Is it true that we can consider a spherical wave in the far field (i.e. away from antenna, at a large distance) as a...

Jun1008 11:21 AM
HallsofIvy

1 
3,935 
Dear topic mates!
I'm an electric engineer and physicist student from Hungary.
I looking for description of the...

Mar2509 02:48 AM
mind

5 
3,338 
Hello there. I'm currently dead beat on this problem, maybe because I'm not sure I quite understand what it's asking...

May804 01:49 AM
Theelectricchild

2 
3,023 
Hi. I'm trying to make a small simulation of several simple physical systems (C++). I have the differential equation...

Jul1712 06:42 AM
RooccoXXI

1 
1,095 
I thought of this question the other day, and I was unable to solve it. A Google search has not helped, so I thought...

Jan313 06:11 PM
tinytim

3 
795 
Hello, everyone!
I'm working on parametrizing a magnetic field using spherical harmonics. The equations
Yc n,m...

Jul1609 11:20 AM
Dzyubak

2 
2,061 
Hi,
I need expand a spherical function(real function not a complex function) in terms of spherical harmonics....

Feb1511 07:34 AM
DrDu

1 
1,850 
imagine there is a spherical glass object with index of refraction N
is that possible that for some N and angle of...

Nov1505 11:09 AM
jtbell

2 
1,307 