I Wonder I wonder why the grass is green, and why the wind is never seen ? Who taught the birds to build a nest, And told to trees to take a rest ? O, When the moon is not quite round, Where can the missing bit be found ? Who lights the stars, when they blow out, And makes the lightning flash about ? Who paints the rainbow in the sky, And hangs the fluffy clouds so high? Why is it now, do you suppose, That Dad won't tell me , if he knows? by Jeannie Kirby
https://youtu.be/oLhDYRDdNl0 Alpha rays :- Nature: He nuclei represented as 2 He⁴ or He²+ Mass : 4 a.m.u or 6.642 × 10^ –27 kg Charge : Positive charge of +2 units Penetrating power : Minimum -0.1 mm thick aluminum foil can stop it. Ionising power : Maximum. Beta rays:- Nature: Stream of electron represented as -1e⁰. Mass : 0.000548597 a.m.u. or 9.1 x 10 - 31 kg Charge : Negative charge of –1 unit. Penetrating power : It is stopped by 5 mm thick Aluminum foil. Ionising power : Less than Alpha but more than Gamma rays. Gamma rays:— Nature : Electromagnetic waves of very short wavelengths. Mass : No mass Charge : 0 Penetrating power : Maximum — even 750 mm thick pb plate cannot stop it. Ionising power : very Low.
where am I ? at this moment we are alive we don't know, when we'll die. it is not a lie ask yourself, where am I ? Truth nothing is perpetual. Nothing is regarded as actual do you know exact value of ㄫ ask yourself Where am I ? __________________________________ if you understand that what i am talking about in this poem, actually the meaning behind this poem is that. nothing is permanent here in this world and this universe. although this world is not even permanent. so be grateful with whatever you have, be thankful to ALLAH that we're still alive. and must ask your self, must remind yourself that where am i
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