This is a nice trick for quickly multiplying two numbers provided the most significant digit of both numbers are the same! Therefore the trick can obviously be applied only in limited situations!...
This is a cool trick and simple too. How do you make an egg resting on top of a tequila glass jump up? The trick is explained very well. Use it as a bet with your buddies and win a few bucks!...
How on earth does this guy pull this off...it obviously is a trick - clearly he has put the coin into the balloon in advance. But, how does he create the illusion of pushing the coin in?