Profile cover photo
Profile photo
Ahmed BEN CHEIKH
439 followers -
Technical and Business Consultant, Automotive & Mechanical Industries
Technical and Business Consultant, Automotive & Mechanical Industries

439 followers
About
Ahmed's interests
View all
Ahmed's posts

Post has attachment

Ahmed Ben Cheikh a partagé avec vous une photo vidéos depuis l'application Flickr. Découvrez par vous-même :
https://flic.kr/p/NJdLKi
Photo

Post has attachment

Post has attachment
Bloqué à cause d'une dakhla du bac sport à La Marsa.
Alors je sors ma caméra et je shoote.

Post has attachment
I just completed an activity with Runkeeper https://runkeeper.com/activity?userId=1997478&trip=739945903

Post has attachment

Post has attachment
I just completed an activity with Runkeeper http://runkeeper.com/activity?userId=1997478&trip=716866805

Post has attachment
Musée d'art naïf de Vicq en Île-de-France

Post has attachment
An amazing article !

Post has attachment
Feu d'artifice de la fête des vendanges de Montmartre 2015.

Post has shared content
Energy explained. Newton's cradle.
Named after Sir Isaac Newton, is a device that demonstrates conservation of momentum and energy via a series of swinging spheres. When one on the end is lifted and released, it strikes the stationary spheres; a force is transmitted through the stationary spheres and pushes the last one upward. The device is also known as Newton's balls or Executive Ball Clicker.

If one ball is pulled away and is let to fall, it strikes the first ball in the series and comes to nearly a dead stop. The ball on the opposite side acquires most of the velocity and almost instantly swings in an arc almost as high as the release height of the last ball. This shows that the final ball receives most of the energy and momentum that was in the first ball. The impact produces a compression wave that propagates through the intermediate balls. Any efficiently elastic material such as steel will do this as long as the kinetic energy is temporarily stored as potential energy in the compression of the material rather than being lost as heat.


An idealized Newton's cradle with five balls when there are no energy losses and there is always a small separation between the balls, except for when a pair is colliding.
With two balls dropped, exactly two balls on the opposite side swing out and back. With three balls dropped, three balls will swing back and forth, with the central ball appearing to swing without interruption.
~Wikipedia 
#Isaacnewton   #Physics    #Gif  
Animated Photo
Wait while more posts are being loaded