## ACCELERATING EDUCATION

Physics keeps life going-物理 依据 生命

## Σάββατο, 29 Σεπτεμβρίου 2012

### ACCELERATING EDUCATION: FROM SPACE TO QUARK

ACCELERATING EDUCATION: FROM SPACE TO QUARK: TRAVELING THROUGH THE UNIVERSE

## Πέμπτη, 27 Σεπτεμβρίου 2012

### Creative way of solving a problem in the Class.

Notes from Physics Lesson!!!

### ACCELERATING EDUCATION: Greek manuscript from Newton

ACCELERATING EDUCATION: Greek manuscript from Newton: Newton knew Greek and he used writing in Greek language at  his note book   see more at the link:   University of Cambridge

## Τετάρτη, 26 Σεπτεμβρίου 2012

### CAN YOU EXPLAIN IT?

Interesting video

# Synchronization of chaos

Synchronization of chaos is a phenomenon that may occur when two, or more, dissipative chaotic systems are coupled. Because of the exponential divergence of the nearby trajectories of chaotic system, having two chaotic systems evolving in synchrony might appear surprising. However, synchronization of coupled or driven chaotic oscillators is a phenomenon well established experimentally and reasonably well understood theoretically. Synchronization of chaos is a rich phenomenon and a multi-disciplinary discipline with broad range applications [1][2]. Synchronization may present a variety of forms depending on the nature of the interacting systems and of the coupling scheme.

Σχόλια μαθητών:

-

10:31pm
προσαρμοζονται στη συχνοτητα του αλλου και σιγα σιγα το ενα παιρνει τη συχνοτητα του αλλου κατι τετοιο

## Δευτέρα, 24 Σεπτεμβρίου 2012

### ACCIDENTS IN THE SPACE

The Space Shuttle Challenger Explodes

anuary 28th, 1986 at 11:39am EDT - The Space Shuttle Challenger Explodes on its 10th flight during mission STS-51-L. The explosion occurred 73 seconds after liftoff and was actually the result of rapid deceleration and not combustion of fuel.

The space shuttle Endeavour

## Τετάρτη, 19 Σεπτεμβρίου 2012

### HORIZONTAL MOTION

A projectile is launched horizontally from a cliff as you can see below.

Calculate
a) the value of the total time of flight.
b) the hight of the cliff.
c) the range of the motion.

g=10 m/s^2

## Σάββατο, 15 Σεπτεμβρίου 2012

### HORIZONTAL MOTION - EXERSICE.

THEORY

Equations for x-axe
Equations for y-axe
Equation of motion y-x
Total time of flight
Range
Total velocity

Projectile motion on a planet

A projectile is launched horizontally from a cliff on a planet in a distant solar system. The graph
below plots the horizontal (x) and vertical (y) positions of the projectile every 0.5 seconds.

(a) Determine the initial velocity with which the projectile was launched.

b) How can you tell from the plotted data that the planet’s atmosphere had no significant effect
on the motion of the projectile?

(c) Calculate the value of the acceleration.

(d) Draw vectors to represent the horizontal and vertical components
of the velocity at the point F.

(e) Determine the vertical component and the total value of the  velocity of the projectile at the point F.

f) What will happen if the atmosphere had significant effect on the motion?

(g) Another projectile is fired at half the speed of the first one. On the graph , plot the
positions of this projectile for time intervals of 0.5 s.