@JohnRennie I have a really crappy idea about something. If 15V are required for a really small cell, and I need 1500V for my big cell, can I just hook many small conducting plates on both sides of my big cell, each with ~15V across them? You get the idea.
> This is the power of dimensional analysis. We can get answers to questions, even if we do not understand the underlying principles of the problem, merely by observing the physical units of the quantities under inspection.
I think this is not the power but the main problem of dimensional analysis.
Americans may find it hard to relate to this conversation, since they talk about fuel consumption in miles per gallon, and I guess seeing that as an inverse area is a bit of a stretch. Whereas volume / distance is virtually inviting you to do the division and obtain an area.
$\alpha \times [0,1)$ where $\alpha \in \mathbf{On}$ This line is SO LONG that there's a point which all increasing sequences of any ordinal length will not converge to it Probably a nice impression on how large Cantor's Absolute Infinite is
@Abhi If you have a question, you should ask it. Then people who can (& who want to) help you will respond. You shouldn't expect people to commit to helping you when they have no idea what your problem is.
@Abhi If you have a question, you should ask it. Then people who can (& who want to) help you will respond. You shouldn't expect people to commit to helping you when they have no idea what your problem is.
I notice that there is an image link that no longer works at the end of this recently updated page in Meta.SE.
I suspect that this is only one example of many items that have links to tinypic.com.
Can anything be done about this situation before that site shuts down?
TinyPic is shutting do...
I was laying on my bed, reading a book when the sun shone through the windows on my left. I happened to look at the wall on my right and noticed this very strange effect. The shadow of my elbow, when near the pages of the book, joined up with the shadow of the book even though I wasn't physically...
To help you with section a:
Your approach in writing the differential equation for the two positions (http://oi62.tinypic.com/dfx6yq.jpg) is correct. Since we know gravity won't affect the resonant frequency, I'll ignore gravity when writing the equations.
$$\ddot{y_1} = -(k/m_1)(y_1-y_2)$$
$$...
This question is on behalf of someone else without access to a computer so any further clarification or responses may be delayed. The question comes in the form of photos of the original questions as they were sent to me. I would transcribe them to text buy I am unable to write the pictures/diagr...
The middle galaxy in Einstein's cross has an elliptical mass distribution which is wider in the direction of the short leg of the cross (originally, this said long leg), with a center of mass where you see the galaxy. The object is slightly to the right of the center of the ellipse, in the direct...
Since the Lorentz transformations are a consequence of the postulate of constancy of the speed of light, together with some homogeneity and parallel postulates, it is a little difficult to make precise the request for a Lorentz-transformation free demonstration.
But I will interpret the question...
This thread(physicsforums.com) contains a link to Shouryya Ray's poster, in which he presents his results.
So the problem is to find the trajectory of a particle under influence of gravity and quadratic air resistance. The governing equations, as they appear on the poster:
$$
\dot u(t) + \alpha...
This is quite a philosophical, soft question which can be moved if necessary.
So, basically I started my PhD 9 months ago and have thrown myself into learning more mathematics and found this an enjoyable and rewarding experience. However, I have come to realise how much further I still have to ...
Thanks to our awesome friends at http://imgur.com we now have built in image uploads, via the standard image upload button.
This will be deployed to all our sites in the next few days, for the time being you can test on meta.
More details on the blog: New Image Upload Support.