Reason and Logic

                                                            Sometimes we observe some strange things regarding many things but understanding the same requires some research behind such matters.

                                                          The padlocks have some holes in the bottom.  It raises the curiosity of some people who are a little bit particular. Things like water when go in a padlock and can drain easily. Besides that, it can be used to pour oil so that it does not get jammed.

                                                        Sometimes the hole is found in the window of an aircraft. It is meant to breathe hold if there is a drop of pressure. It also helps to keep the cabin pressure at a safe and comfortable level. It also gives the crew the ability to  change the   pressure of the cabin,

                                                       The extra hole on the top of the sneaker helps to tie one shoe much tighter.

                                                       The long-neck bottle is used in trade and industry when a normal-neck bottle can be used.   The long-neck bottle can be easy to hold. Besides that, it also helps to distribute the heat throughout the entire bottle when it is held.  

                                                      There is a hole next to the Camera.  It is a microphone as there are three microphones in a Smartphone. The other two microphones are at the bottom edge and under the speaker grill respectively.

                                                      The brass door nobs are used as it is more resistant to bacteria. This is because door nobs are used by several people. Brass also helps to keep it germ-free.  

     In short, everything has logic and reasoning behind it. One has to try to understand the same.

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