A-MATHS WORKSHEET

this is the A-MATHS WORKSHEET YOU CAN GET IT FROM HERE!!!

LIGHTNING!!!!!

here are some information on lighting !!

WHAT IS LIGHTNING ?

lightning is electricity.It forms in the strong up-and-down air currents inside tall dark cumulonimbus clouds as water droplets, hail, and ice crystals collide with one another The positive and negative electrical charges in the cloud separate from one another, the negative charges dropping to the lower part of the cloud and the positive charges staying ins the middle and upper parts.*Positive electrical charges also build upon the ground below. difference in the charges becomes large enough(force is strong to overcome the air resistance), a flow of electricity moves from the cloud down to the ground or from one part of the cloud to another, or from one cloud to another cloudour eyes fool us into thinking that the lightning bolt shoots down from the cloud, when *in fact the lightning travels up from the ground.

HOW THUNDER CLAP IS FORM ?

Lightning bolts are extremely hot which is even hotter than the surface of the sun with a temperature of 30,000 to 50,000 degrees F the heat of the lightning bolt cause the surrounding air to have a sudden expansion as a result, a LOUD claping sound sound is heard.

the above information is extracted from this particular website : http://www.wxdude.com/page5.html

here are some of the other useful websites that contain useful information on lightning !!

http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/tstorm/lightning.html&edu=high

WA long time no post !!

sian leh actually i got an idea on researching on how lightning, thunderstorm, thyphoon is formed but i am unable to find good information on them!!

NOTE: i didn't mean copy Zues idea i just happened to thought of these topics too. SO SORRY!! Wish you dont mind

chemical powered car copetition 2007

who want to join the Chemical Powered Car Competition 2007 for more info go to MR ang blog http://3edeyi.blogspot.com/ if you going please tell me( write on the tag box) ... !!! i want to see who going !!!

HOW LASER MACHINE WORKS ?? ^_^

^^ picture of a laser cutting machine!! taken from www.yahoo.com

The solid-state laser utilizes a single crystal rod with parallel, flat ends. Both ends have reflective surfaces. A high-intensity light source, or flash tube surrounds the crystal. When power is supplied by the PFN (pulse-forming network), an intense pulse of light (photons) will be released through one end of the crystal rod. The light being released is of single wavelength, thus allowing for minimum divergence.......................... MANY MANY MORE..

lETS FIND OUT MORE ON : http://www.ebtecwelding.com/laser-cutting/howlcutmachworks.html

this is some of the website which contain useful and intreasting especially the info on types of laser!!!! information on laser and laser cutting. SO DON'T MISS IT CLICK ON THESE LINKS TO KNOW MORE ABOUT THEM !! ~~~:

1. http://en.wikipedia.org/wiki/Laser
2. http://en.wikipedia.org/wiki/Laser_cutting
3. Laser engraving : http://en.wikipedia.org/wiki/Laser_engraving

MY VERY FIRST POST ~~~ =)

^^ this is a picture of silicon laser. isn't it nice ?
haha this is my first post for this particular BLOG ~~~ i haven done anything much on the physic project yet . But i will get it done ASAP. SOON