sciencecapsules

          Your friend asks " shall I bet 1000 dollars in Las Vegas tonight? " You want answer "yes" secretly.  You can do it in the following way easily. Step 1. Write down the binary code of  YES as used in computer.                             Y                          E                            S                      01011001             01000101              01010011             ( 8 bit binary code)  Step 2. Write some sentences like                          " my life is open book. I have no secrets. "   [30 letters]   Step 3. Let each letter in the sentence represent a bit {binary digit 0 or 1}. To represent 0, leave the font as it is.  To represent 1,    make the letter slightly bolder[ you can innovate].  Code the 24 bits in first 24 letters of the sentences.  Leave the remaining 6 letters as they are.  They may be taken to represent trailing zeros.  The sentence  looks as given below.                                    

Can just a pair of plates(conductors) make an important component in all the gadgets and appliances we use daily?  Yes it is.      Imagine two metal plates separated by a small gap.  If one plate is charged positively using a battery, negative charge will be induced in the other plate since they are very close.  Both the plates hold charges and the electric field.  They act as a temporary storage of electricity or like a small battery.  When the plates are connected externally by a wire, they discharge and send a current.  This arrangement is called capacitor .  It has wide applications.      In a camera,  charges stored in the capacitor is released all at once triggering a 'flash of light'.  Since it act as a temporary storage between the source of electricity and the appliance, it can smooth out the fluctuations in the current and can supply a steady current.        Take two strips of aluminium foils (food packaging material).  Put a thin strip of white paper