Rocket works on Third law Of Motion, which states that for every action there is equal & opposite reaction. By: Dev! Created By School Address Email Class Aswathy.S.R, Chinju.G, Chinju.M.S, Jini.R, Sreedevi.B, Sreejadevi.J, Vinitha.A Govt High School Vanchiyoor, Thiruvananthapuram, Kerala Read More …
The presentation shows pictures of rockets, describe a brief history & explains the working of rocket. By: Dev! Created By School Address Email Class Abdul Wadood, Anurag.S, Devanarayanan, Mohd Safeer S.M.V.H.S.S Kerala 10th
The greatest risks arising from the use of ultrasound are the possible over- and under- diagnosis brought about by inadequately trained staff, often working in relative isolation and using poor equipment By: Ranjit Kumar! Created By School Address Email Class Read More …
When the automotive industry was in its infancy, it used electricity only to ignite the fuel inside the engine. By the late 1920’s, the electric starter replaced the hand crank, electric headlights made acetylene lamps obsolete and the braying of Read More …
History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world’s first artificial satellite was about the size of a basketball, weighed only 183 pounds… By: Ashok Kumar! Created By School Address Email Class V.MURALI Read More …
SATELLITE-BASED WIRELESS SYSTEM:Wired communication requires physical connection between sender and receiver. There are many situation in which it is difficult to run physical wires. To avoid some of the limitations of the wired systems, Communication companies have added… By: Ranjit Read More …
A rocket is a vehicle, missile or aircraft which obtains thrust by the reaction to the ejection of fast moving exhaust gas from within a rocket engine. By: Dev! Created By School Address Email Class Ardhra P.B. & Ramya D. Read More …
Robot, self-governing, programmable electromechanical device used in industry and in scientific research to perform a task or a limited repertoire of tasks. Robots are a subcategory of automated devices By: Ashok Kumar! Created By School Address Email Class K. Thilaka Read More …
An aeroplane can lift itself because the wing, angled slightly downwards towards the back, pushes air downwards as the wing is propelled forwards by the engine. By: Dev! Created By School Address Email Class Aravind M.P., RateeshS.R., Shaiju C.S. Govt. Read More …
The objectives of this presentation is to know the parts of the aeroplane, to know about air crafts. By: Dev! Created By School Address Email Class Lubna, Meera.K.S, Neethi Mohan, Sree Remya Govt.Model V.H.S.S. Manacaud, Kerala 10th