Discover Questions

How come we still haven't found a living bacteria or a fossil yet from other planets? Isn't this proof we are alone in the universe? How fast would a 1000-kg car be traveling if it had a kinetic energy equal to 1000 Calories? If at time t, mosquito A is at position P and mosquito B is at position Q, determine the vector PQ and find their distance at any instant.? How many ways can rook travel from lower left corner to upper right on chessboard size of 2015x2015 in exactly 4 moves? How big in terms of numbers would the human population be in 500 years?