M Dash Foundation: C Cube Learning

Category: Science

  • How Radio-active are cigarettes?

    Units: 37 GBq = 37×10^9Bq = 1 Curie Radioactivity of Pb(210) and Po(210) Lead 210, 22.3 years, 207.2 g/mol… Q = 0.064 MeV (beta) Polonium, 137.376 days, 210 g/mol… Q = 5.407 MeV (alpha) Let’s assume the amount of lead and Po to be 0.5 micro-gram each in 1 cigarette. SO (0.5/207.2)x10^(-6) mol of Pb…

  • The radioactivity of banana (I did this for cigarettes also)

    a simple radio active decay uses the ideas of quantum mechanics

  • Why Prometheus bears God’s anger…

    He acted against Gods will to save mankind, Now Prometheus is a volcano The space craft Voyager2 was launched 33 years ago, the guy who is keeping a watch on Jupiter, Saturn, Neptune & Uranus, currently sending data at 20 bytes a sec, it has sent images and data of all these 4 planets and their…

  • Life time of particles and Time dilation

    SO a muon which has a life time of 2 micro seconds moving at a speed of 3, 5ths of the speed of light would live for 2.5 micro seconds because time would dilate, that is, the life time for the muon observed by someone when it moves fast (apparent life time) will be more.

  • Interesting facts about nature…

    The time for which a Klong lives, light would travel 15.3 meters in that time, and in the time a Kshort is alive, light would travel only 2.7 centi meters. Kshort and Klong are the same particle only different in how long they live. (they are like the same sprinter with different speed capacities) A…