събота, 20 ноември 2010 г.

Science at the Service of Europe

http://ec.europa.eu/research/sse/2009/index_en.cfm

How does TV work?

This is a basic model of TV operation.

It shows a camera taking a picture and a TV set showing it.

You may use the pen tool to draw a picture on the left and watch it being regenerated on the TV set.



http://www.agentsheets.com/Applets/how-does-tv-work/

Typing lessons

You may:

* Check in Which fingers go here to see which finger should hit each key
* Go to 1.Home Row, Left Hand and start the lesson

(Go to the bottom of the page and click on Click here to start)

* Continue with the rest of the lessons
http://www.typing-lessons.org/preliminaries_4.html

Young's Double Slit Experiment

Double slit experiment showing interference and diffraction.

You may change the:

* Distance between the slits
* Wave length
* Width of a slit
* Slit to screen distance

You may also:

* Switch from viewing the experiment to viewing the results
* Click and drag anywhere on the screen to change the viewpoint
* Double click anywhere to shift the origin

http://www.surendranath.org/Applets/Optics/Slits/DoubleSlitID/DblSltIntDifApplet.html

Time dilation

The image shows a stationary clock and a clock located on a rocket moving at constant velocity.

Both clocks click when a photon bounces.

You may:

* Change the rocket's speed (as a percentage of the speed of light)
* Restart both clocks with the Reset button
* See the "Version of the applet with length contraction"
http://inspire.eun.org/index.php/P3-17-11

Forces on pendulum

The animation shows the weight, the force due to tension and the total force exerted on the bob of a pendulum.

You may:

* Pause the simulation
* Follow the oscillation step by step, in both back and forth motion


http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/ClassMechanics/PendulumForces/PendulumForces.html

Beats

http://www.walter-fendt.de/ph14e/beats.htm

Radioactive decay

A simulation illustrating radioactive decay.

The table shows some isotopes.

Choose an element and check whether it is stable or not.

If it is unstable, wait a few seconds and it will decay.
http://www.colorado.edu/physics/2000/applets/iso.html

Galilean relativity

A simulation illustrating Galileo's experiment about relative motion.

A train is moving with constant velocity v and people are standing on the platform.

Balls are dropped or thrown with velocity v, both inside and outside the train.


http://www.phys.unsw.edu.au/einsteinlight/jw/module1_Galileo_and_Newton.htm

Reflection-refraction

Overview:

A simulation which explores reflection and refraction from air to glass and from glass to air, including total internal reflection.

You may change the:

* Index of refraction of the glass
* Angle of incidence
http://inspire.eun.org/index.php/P2-13-6
http://www.upscale.utoronto.ca/PVB/Harrison/Flash/Optics/Refraction/Refraction.html

Ohm’s law

http://www.walter-fendt.de/ph14e/ohmslaw.htm
This simulation explores intensity (I) and voltage (V) in a simple circuit.

You may change the:

* Maximum values tolerated by the meters
* Resistance, R
* Battery voltage, E

You can measure:

* Intensity, I
* Voltage, V

Sound Wave

http://illuminations.nctm.org/ActivityDetail.aspx?ID=37
Frequently sound is described using terms such as pitch, tone, frequency, intensity or loudness. To understand the origins of these terms as well as to understand the mathematical models used to represent sound, this applet can help you to explore the dynamics of a sound wave.

Motion with Constant Acceleration

http://www.walter-fendt.de/ph14e/acceleration.htm
A car moves with constant acceleration.

Digital clocks indicate the time elapsed since the car starts moving and up to the green or red light barrier.

Diagrams illustrate the motion versus time t in terms of:

* Position x
* Velocity v
* Acceleration a

Velocity and acceleration vectors may be displayed.

Displace and Distance

http://inspire.eun.org/index.php/P1-5-1
http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/ClassMechanics/DisplaceDistance/DisplaceDistance.html

An exercise designed to explore the difference between the distance travelled and the displacement travelled.

Conservation of energy


http://inspire.eun.org/index.php/P4-5-4
http://www.surendranath.org/Applets/Dynamics/Coaster/CoasterApplet.html
Overview:

This simulation allows us to experiment with mechanical energy conservation.

You may modify:

* The initial height
* The height of the barrier
* The loop radius

You may also show the position of the cart at equal time intervals.

Memory remanence


http://inspire.eun.org/index.php/T4-17-60
Overview and suggestions on how to integrate a video in class, which shows the gradual decay of stored images in shutting down a computer.

сряда, 10 ноември 2010 г.

Join the U4energy competition!


Европейската комисия започна U4energy, нов конкурс, за да насърчи енергийните спестявания в цяла Европа. В конкурса могат да участват учители и ученици в 31 европейски страни, и ще възнагради най-добрите енергоспестяващи практики в училищата.
Подробности тук:
http://www.u4energy.eu/web/guest;jsessionid=CC3E82F09B78FE05851C8C62919137BD

вторник, 9 ноември 2010 г.

Greenlight for Girls "Science Day"


The Greenlight for Girls “Science Day” aims to get girls interested in science and technology through interactive workshops on subjects ranging from digital music to DNA research. The workshops are led by outstanding women in their fields.

Registration is open for girls aged 11 to 15 from the Brussels region at www.greenlightforgirls.org/event-registration/
Export to iCal

Url: www.greenlightforgirls.org/event-registration/

сряда, 3 ноември 2010 г.

Inspire


http://inspire.eun.org/index.php/P2-5-2

Parsel

Parsel
Popularity and Relevance
of Science Education for Science Literacy

PARSEL е проект, с който се цели да се увеличи популярността и значението на научното образование с помощта на преподаването и изучаването на модула. Тъй като общата цел е подобряване на научната грамотност на учениците, модулите са насочени към насърчаване на гражданската отговорност.
http://www.parsel.uni-kiel.de/cms/index.php?id=118&L=0

How to heat my house?
Това е един интересен проект, свързан с енергиината ефективност.



http://www.parsel.uni-kiel.de/cms/index.php?id=59