Modern science

Can we travel in past and what is grand father paradox?   First of all we have to know that what is time?  Time is the indefinite continued progress of existence and events that occur in an apparently irreversible succession from the past, through the present, into the future. Some of the scientists believe that it is our 4th dimension and time travel is possible but there are numerous of paradox one such paradox is grandfather paradox- In this paradox let carry is a scientist and with his hard work. He made a time machine . esnipe mart® 20 activities & games fun laptop notebook computer toy for kids-Blue He had a very bad relationship with his grandfather so he wanted to kill his grandfather. So he take his time machine and went to that time when his  Grandfather was not  married. He then killed his grandfather. So how he exist because if his grandfather and grandmother don't marry each other then how his father born and if his fathe...

Before  understanding the mind blowing paradox. Let's understand the basic difference between fact, law, theory and hypothesis etc 1.Fact is just an observation of any event. It doesn't explain the cause of event 2.law-let's understand this with very simple example moving of car. We can predict it's speed, distance travel by car etc by doing mathematical calculation. This is known as law it's universal observable fact.  3.Hypothesis  - why the car is moving? To explain this we give many reasons that is known as hypothesis. A  hypothesis  (plural  hypotheses ) is a proposed explanation for a phenomenon. 4.Theory-There are many hypothesis are given when they are  practically proved there are known as theory. They modify time to time.   theory  is a rational type of abstract thinking about a phenomenon, or the results of such thinking. 5.paradox- A statement which when investigated ma...