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Apr2211 05:27 AM
ZapperZ

2 
63,523 
The aim of this thread is to highlight recent (as in within the past 3 months) noteworthy physics papers that have...

Apr814 10:13 AM
ZapperZ

166 
159,925 
I'm not sure how to put it,
but recently its been happening, so far around 3 times,
i leave a glass or a...

Sep1312 04:43 AM
sophiecentaur

33 
2,690 
Hi,
I am using thie χ2 test to fit a dataset in order to calibrate a sensor.
\chi^{2} = \sum_{i}{{\left(y_{i} ...

Sep1312 09:43 AM
egon ll

0 
566 
Not sure where to post this or if this can be solved, but I couldn't figure it out because math and physics are...

Sep1312 10:16 AM
bahamagreen

5 
1,216 
Can we earth ground AC and DC voltage?
would this effect the components on the system?

Sep1312 10:57 AM
Studiot

8 
1,219 
While boiling water, I was thinking: Would one liter of water boil faster or slower if I boil it all at the same time,...

Sep1312 11:09 AM
mikeph

3 
711 
hi All,
I got to thinking recently about diffraction; through an opaque slit for example, causes a normal...

Sep1312 12:19 PM
Gobil

2 
638 
Dear All
I want to know the formula to extract the longitude of the satellite from the TLE below.
I hope someone...

Sep1312 03:34 PM
voko

1 
987 
I have no idea what angle it's talking about and also what angle im supposed to get in this problem. It seems to me...

Sep1312 04:12 PM
HallsofIvy

3 
1,915 
I have to do some dataacquisition from a car with some accelerometers.
4 accelerometers is placed on the wheels...

Sep1312 06:04 PM
256bits

1 
1,254 
Hello
for adiabatic process,
pVγ=const
What is the physical meaning of the constant at the Rhs of this...

Sep1312 08:12 PM
Q_Goest

10 
1,257 
I have a few questions that share a similar theme.
1) Is wind just fastmoving air particles?
2) When you're in...

Sep1312 08:37 PM
autodidude

15 
1,763 
what happens to the atoms in water when it is compressed so much that all atoms have no space to move?
im guessing...

Sep1312 09:29 PM
mexfight

2 
565 
OK, a couple of things.
1. I know there are a few theories of "why" gravity exists with gravitons and entropy, etc....

Sep1312 09:42 PM
jedishrfu

1 
611 
Ive asked this question so many times on various forums and i feel there is a simple answer that i just havent heard...

Sep1412 06:41 AM
harrylin

17 
2,243 
what is the relation between Specific Heat and Absolute Temperature of any material ?
Specifically, Sodium.
Cp vs...

Sep1412 08:37 AM
nasu

1 
501 
Hey guys, I was just reading an article on a patent Michael Jackson had under his name for one of his "antigravity"...

Sep1412 09:23 AM
jedishrfu

3 
717 
i had a question PV=nRT
is the V the volume of the container or the gas
and if it was the container
and i had a...

Sep1412 10:11 AM
abdo799

3 
557 
Do you think that matter, energy, space, time, etc. are discrete, or continuous?
If they are discrete, is...

Sep1412 11:08 AM
Studiot

17 
1,652 
If the world was frictionless, would the Earth orbit underneath your feet? Would buildings and things attached to the...

Sep1412 04:08 PM
voko

20 
1,988 
Scientists say that in mathematical terms in singularity all the math breaks down and you get infinity. But how come...

Sep1412 09:24 PM
russ_watters

6 
736 
Hi,
I realize that this might be kind of a silly question, but I am in a physics class currently and I'm having the...

Sep1412 10:35 PM
Simon Bridge

1 
772 
Hi,I don know if my question will be clear,but I will try it.So,I m wondering how was derive this equation:...

Sep1512 04:06 AM
thedy

0 
538 
We just went over Faraday's law in class and our teacher stressed how a changing flux is needed to induce an emf in...

Sep1512 04:38 AM
BruceW

5 
1,180 
I've read his book and he talks about AC current frequencies of incredibly high magnitudes. How was this achieved?...

Sep1512 05:14 AM
Dickfore

3 
663 
Would anyone be able to help me wire up a single phase syncronous motor with a phasing capacitor to the mains? The...

Sep1512 08:04 AM
Khushie

0 
800 
Im really stuck and I would be grateful if someone could give me formula related to a mass that lies on a geodesic...

Sep1512 09:49 AM
omar7860

0 
642 
Greetings, this is my first post, though I have been reading these forums for a while.
I understand that the...

Sep1512 10:13 AM
sanbyakuman

5 
846 
Recently I have been involved in a car accident, and would like to figure out what was the speed of the other car that...

Sep1512 12:25 PM
spuding102

4 
737 
This may at first seem like a very stupid question, but I can't seem to get to the root of magnetism.
As we all...

Sep1512 01:30 PM
Khashishi

19 
2,271 
Hi everyone!
I cannot find anywhere the Huygens Steiner Theorem proof, can somebody explain me this proof ?

Sep1512 04:42 PM
nebbione

0 
489 
I have two fishing lines that are of the same material but one has a larger cross sectional area than the other, which...

Sep1512 06:26 PM
nasu

12 
1,119 
If I am stationary and a sound source moves towards me at a constant velocity, I will hear it (the sound) increase in...

Sep1512 09:21 PM
Kerrin

4 
940 
What is the difference between ramanspectroscopy and usual spectroscopy?

Sep1512 11:56 PM
davenn

1 
591 
This is possibly an engineering, rather than physics, question. (Ooooooooo! Busted!)
John picks up a paperclip and...

Sep1612 02:03 AM
JeffEvarts

1 
434 
Not sure where better to place this thread, here or gr.
Is there direct evidence photons attract one another...

Sep1612 03:00 AM
cragar

55 
6,828 
Hello everyone,
These days i am studying thermal physics in my classes so had a few queries to get clear about.
...

Sep1612 09:31 AM
Studiot

27 
2,356 
1. Are these two the same? I'm not sure. Sometimes my teacher labels the Y axis with a Delta Displacement . Other...

Sep1612 01:55 PM
Simon Bridge

1 
1,412 
Hello,
I was thinking of the following question: suppose we have a body in twodimensional space and its density is...

Sep1612 03:10 PM
Simon Bridge

3 
659 
Ok,lets say an object is moving at a constant speed of Mach 7 for 20000ft. The weight for the object is 2000 lbs.
...

Sep1612 03:51 PM
Zula110100100

4 
661 
And why is it parallel? Do we actually know what causes magnetism at all?

Sep1612 04:21 PM
Naty1

2 
764 