Lesson Plan #29 http://www.phy6.org/stargaze/Lcircul.htm . A short but important section, deriving centripetal acceleration for motion at constant speed around a circle. ... That the "centripetal acceleration" of an object going around a circle of radius R with constant speed v equals v 2 /r and is directed towards the center of the motion. ... Terms: uniform circular motion, frequency, peripheral velocity, centripetal acceleration and force. ... A newer one An older one Timeline Glossary . ...

In the absence of forces, motion in a straight line and constant velocity continues indefinitely. Motion in a circle, however, requires forces to act. ... Since its velocity v equals the distance it moves in one second, one finds . ... The above result suggests that steady motion around a circle, at least for a short time span, can be viewed as the sum of a straight-line motion with fixed velocity v , plus an accelerated motion towards the center of attraction, with the above acceleration, a . ...

Diamond's Stealth 64 Video VRAM is the perfect choice for graphics and video performance. ... The Diamond Stealth 64 Video continues our award-winning tradition, delivering the best price / performance multimedia accelerators available. ... 64-bit graphics performance . ... Designed around a solid 64-bit graphics engine, the Stealth 64 Video VRAM provides unparalleled performance in any environment. ... The Stealth 64 Video VRAM includes hardware to accelerate video playback on the Windows desktop. ...

... NVIDIA, the NVIDIA logo, NVIDIA nForce, GeForce, NVIDIA Quadro, Vanta, TNT2, TNT, RIVA, RIVA TNT, Quincunx Antialiasing, and TwinView are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries. Linux is a registered trademark of Linus Torvalds. ... OpenGL is a registered trademark of Silicon Graphics Inc. ... Installing the NVIDIA Driver . ... Configuring X for the NVIDIA Driver . Using nvidia-xconfig to configure the X server . ...

AGP=Accelerated Graphics Port . ... 132 PIN EDGE CONNECTOR at the computer. ... Reserved* Ground . ... Ground . ... VCC 3.3 . ... Vddq 3.3 . ... AGP pinout at The Pin-Out directory . ...

Momentum Thursday, 24 February 2011 Quick Introduction to Momentum Principle · We will come back to all of this - this is just a taster. ... Thursday, 24 February 2011 What is this (Gamma)? = 1 1- v c 2 You are probably familiar with momentum - mass times velocity - but the real equation has this extra term in it. ... Thursday, 24 February 2011 Thursday, 24 February 2011 Thursday, 24 February 2011 Don't normally need to worry about Gamma · Unless you are dealing with remarkably fast motion! ...

... About YAE . ... Maps Directions . ... Turn left on Calvert Street and proceed north approximately 3 1/2 miles to University Parkway. Turn left on University Parkway and proceed approximately 1/3 mile (past JHU stadium and down hill) to San Martin Drive. Turn left at the signal and proceed approximately 1/4 mile to STScI. ... Left onto Coldspring Lane and proceed approximately 1 mile to Roland Avenue (top of hill). ... Turn right at the signal and proceed approximately 1/4 mile to STScI. ...

November 5, 2001 (Monday) Xiao-Gang He, National Taiwan University . ... Tuesday, 2:00 pm, 472 Willamette Hall . Fall 2000 . Winter 2001 . Spring 2001 . ... Recent data from type Ia supernovae show that our universe is currently expanding with an accelerating rate. ... I will also discuss how structure formation is affected. 4:00pm, 318 Willamette Hall . ... To facilitate interpretation of this result, model independent analyses are also presented. 2:00 pm, 472 Willamette Hall . ...

... Impact on source motion in Galactic coordinate system is given by Kovalevsky (2003), Malkin (2011) l cos b = -A sin l, b = -A cos l sin b, where A = R0 02 /c is the galactocentric acceleration called hereafter the GA constant. ... We just have to return to the traditional many-centuries-old astrometric practice of modelling the position of a celestial object as a linear trend with two parameters: the position at the initial (conventional) epoch and the apparent (proper) motion. ... 2011). ...

... Under conditions of the Earth gravitation we are using the method of semi-natural simulation of linear accelerations in the centrifuges with a mobile cab for simulation of G-loads, originating in a space flight. ... The major factor of the orbital flight, affecting a cosmonaut, is a weightlessness state, which causes essential changes in cardiovascular and vestibular systems operation. ... Under the Earth conditions you can "execute" a short-term space flight according to the following cyclogram: . ...

. The image shows in red the X-ray emission produced by high-energy particles accelerated at the shock front where Centaurus A's expanding radio lobe (shown in blue) collides with the surrounding galaxy. (In the top-left corner X-ray emission from close to the central black hole, and from the X-ray jet extending in the opposite direction can also be seen.) . Chandra X-ray Observatory/Royal Astronomical Society

... B.V. Somov . head of the department . ... room 80 . ... senior research felow . ... research felow . ... research fellow . ... Our department performes the following most perspective studies: . Special analytical and numerical experimental investigations of the solar plasma involved in the magnetic reconnection process at the Sun. ... Head of the seminar: Prof. B.V. Somov. ... 27 September 2013 The Solar Physics Department was visited by journalists of the leading Russian TV channel "Vesti-1". ...

... The picture shows a 2-dimensional sketch of the outflowing wind of a quasar (Elvis 2000, Astrophysical Journal , vol.545, p.63-76). In the funnel-shaped disk wind Elvis (2000) model a wind arises from a restricted range of radii on the accretion disk around the central black hole. Initially the wind makes a large angle to the disk plane (and so is roughly cylindrical). ... Looking through the quasi-cylindrical part of the wind we see UV and X-ray warm absorbers. ...

Summary of Research Statement Vladimir Podolskii In this pro ject we plan to work in several directions in Computational Complexity theory which are mostly connected through the methods and techniques. ... The main ob jective in this area is to understand the computational power of this model and in particular to prove lower bounds on the complexity parameters of threshold gates and threshold circuits computing explicit functions. ... We plan to continue this work. ...

... Astrophysics Group . ... Software for Astrophysics . CosmoNet . ... CosmoNet Downloads . ... It uses multilayer perceptron neural networks to accurately determine CMB power spectra (temperature and polarisation), the matter transfer function and experimental likelihoods from the WMAP 3-year data. ... Download the original letter astro-ph/0608174 . Download the latest paper astro-ph/0703445 which includes our latest release capable of computing both flat and non-flat cosmologies. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Universe . ... About four centuries ago, a tiny white dwarf star about the same diameter as Earth, but with a mass equivalent to the Sun, swung in a tight orbit about some larger star. The white dwarfтАЩs intense gravity tore material from its more massive companion. ... The quantity of mass in the universe is constant since the universe started its last self-replication, since its last singularity, its last pre-big bang re-birth conception. ...

Electron-Bombarded, Back-Illuminated CCD Sensors . For Low-Light-Level Imaging Applications . ... Damage to the gate structure oxide layers from keV level X-rays will likely result in increased dark current and decreased full-well capacity. ... Figure 14 shows the increase in dark current versus incident electron energies. ... The back-thinned CCD's 'lifetime' is defined, herein, to be a 50 electron per pixel increase in CCD dark current per 16.7 millisecond integration period. ...

A limit on the ultra-high-energy neutrino flux from Centaurus A Justin Bray For the LUNASKA collaboration Clancy James, Ron Ekers, Chris Phillips, Paul Roberts, John Reynolds, Rebecca McFadden, Ray Protheroe, Jaime Alvarez-MuЯiz, Justin Bray Outline: · Ultra-high-energy (UHE) cosmic rays neutrinos · Detecting UHE neutrinos · The lunar Cherenkov technique · Observations with the ATCA · Observations with Parkes · ASKAP and the future ... Detection Geometry Neutrinos are penetrating.. ...

... IRAF View . This is the orientation of the image as viewed in an image display via IRAF (e.g. ximtool, saoimage). Note: This is different from the orientation of the image as viewed on a Macintosh, via Remark . ... A +X, +Y instrument offset will move a star in the direction indicated by the arrows. ... Note: The offset direction depends upon which interface the offset command was issued in! ... Note: This is different from the orientation of the image as viewed by IRAF. ...

... SSAU scientists, specialists and students were engaged in creation of new scientific equipment for the new satellite for about two years. ... It will participate in the first launch campaign from the space-launch complex Vostochniy. ... The first launch from Vostochniy will perform the Samara carrier rocket Soyuz-2.1a , which will orbit another device created by SSAU scientists and students - nanosatellite SamSat-218 , as well as the university spacecraft Mikhail Lomonosov (Moscow State University)....