The dérive (French: [de.ʁiv], "drift") is a revolutionary strategy originally put forward in the "Theory of the Dérive" (1956) by Guy Debord, a member at the time of the Letterist International. Debord defines the dérive as "a mode of experimental behavior linked to the conditions of urban society: a technique of rapid passage through varied ambiances." It is an unplanned journey through a landscape, usually urban, in which participants drop their everyday relations and "let themselves be drawn by the attractions of the terrain and the encounters they find there". Though solo dérives are possible, Debord indicates that the most fruitful numerical arrangement consists of several small groups of two or three people who have reached the same level of awareness, since cross-checking these different groups' impressions makes it possible to arrive at more objective conclusions.The dérive's goals include studying the terrain of the city (psychogeography) and emotional disorientation, both of which lead to the potential creation of Situations.
Hi guys,
Need a spot of help as i can't seem to find where to go next :(
Ok, so there is a source which emits beta particles (currently unknown whether they are positrons or electrons). It can move at an angle +/- 90 degrees to the GM tube. I need to find an expression for the energy of the...
A circular cone is inscribed in a sphere with a radius of 30cm. The semi vertical angle is theta. Derive a trigonometric equation for the volume of the cone.
This has be stumped. I tried looking up proofs for the expression of the volume of a cone for inspiration but all involve calculus.
I have a box at rest on a plane raised to the critical angle.
I need to derive the formula \mu_s=mgtan(\theta)
I know f_s/n=\mu
n=f_y=mgcos(\theta)
f_s=f_x=mgsin(\theta)
This leaves me with tan(\theta)=\mu cause the mg cancel out... what did I do wrong?
I'm having trouble with this question. It's from Rindler's Introduction to Special Relativity which I'm going through myself. I'm just starting to learn about tensors.
<<<<i) A vector A^i has components \dot{x}, \dot{y} in rectangular Cartesian coordinates; what are its components in polar...
Hi!
How to relate the Young's Modulus with the coefficient of linear thermal expansion? It is known that they are inversely proportional to each other, but how to prove this?
(Projectile Motion)How to derive the equation??
I made a device which use elastic band to launch a ping pong ball.
I have measured the distance traveled with different length of stretch at constant 36 degree launch angle. The graph plotted out is kind of curved, not straight line. And now I am...
I've been trying to derive the Roche Limit and have been successful for the most part but out of curiosity i was wondering how the tidal force equation was derived to be: -2GMmr/d^3 ??
Also on a related note i always get the constant at the front of the Roche Limit equation to be the cube...
I am programming a software which generates random (or close too) numbers. I am adding a multi-player feature to it. I ask the user how many players there are (variable P'), and how many turns in a row each player gets (variable e, for every). I also know the total amount of global turns that...
when we derive a formula for blackbody radiation, we say that each electromagnetic mode has energy nhf, n is an integer, h is Planck's constant f is the frequency of the radiation. We interpret n as the number of photons per mode. However, a deeper QM analysis involves replacing the...
I didn't know where else to post this, so sorry if this is the wrong subforum.
Anyway, I bought myself a physics textbook for self-teaching purposes. I decided to take a look at its Fields chapters, and now I know how to derive Coulomb's Law using F=eE and Φ=∫ E dS. Right, so how advanced is...
Using the fact that z=e^ibeta
and the identity 1 + z + z^2...+z^n=1-z^(n+1)/1-z
Help me derive
1 + cosbeta +cos2beta + ... +cosnbeta= 1/2 + sin((2n+1)beta/2)/2sin(beta/2) where beta is between 0 and 2pi
Hey everyone, I am doing relativisitc physics right now, and in my notes the following formula was derived.
t' = t\sqrt{1- \frac{v^2}{c^2}}
they use two main pictures to describe this, http://aci.mta.ca/Courses/Physics/4701/EText/TimeDilation.html they are.
I am just wondering if...
Setting the Stage:
A uniform sphere has a mass of 100 kilograms and a radius of 10 meters.
It is located at [0,0,0]
It is in static equilibrium.
We are in constant time.
We are in a vacuum, there is no gravity, friction, or any other forces to act upon our sphere.
We are using a...
Origin and escalation of mass-energy equation E=mc^2
Ajay Sharma
Community Science Centre. DOE. Post Box 107 Shimla 171001 HP INDIA
Email physicsajay@lycos.co.uk , physicsajay@yahoo.com
Einstein’s...
My Physics teacher wanted me to understand how to derive a=v^2/r using the equations v=d/t, \omega=\theta/t and arc length=r\theta but when it came down to it, i had brain freeze..and when my teacher looked at it, he had brain freeze. This isn't part of my syllabus but i was wondering how you...
I really need someone to answer this by tomorrow 12/01 10:50 am pacific time...
1) Derive the following, for any integer k.
infinity
SUM OF: 1/(n^(2k)) = ((2(pi))^(2k)(-1)^(k+1)B2k ) /(2(2k)!)
n=1
where Bn is defined by the following, for |x| < 2(pi).
````````````infinity
(x)/(e^(x)-1)...
Realy Confused?
I’m really confused. I have 2 questions and I was wondering if anybody can help me.
(1) First question: to Derive the equation Vi/Vtot = robject /rfluid .
The only other information given is a picture of an oval vertical shaped object that by looking at the picture is...