the hot air balloon

There is am interesting news,a pig farmer believed that what caused 250 pigs run away and ended in a ditch.Finally made bad consequence was because a low flying hot air balloon.So the pig farmer decided to sue the air balloon firm.In April 2012，a hot balloon carried a lot of sightseers flew over Low Moor Farm.and the pigs that in the fences were terrified by the hot balloon and the noise from the burners.The pigs stamped 200 yards and ended in a ditch.So the farm owner believed that it was because the hot balloon,according to the lows,hat air balloons must not to fly on 1500ft or lower than the height,but the balloon 's owner insisted that the hot balloon was over 2500ft,the legal battle continued for about 2 years,and finally the owner got 40000.But what is interesting is that a person took a picture by chance,so the owner found a math professor to help him.According to the  knowledge about trigonometry,the professor improved that the hot balloon was under 1000ft that day,as a result,the insurers company would like to give more money to the pig farmer,the professor use the data that from the sun,from the shadow,from the tree,and putting all of these things together,you will got the answer.And now, the hot balloon company went to liquidation last year.So I think that once you want to do some thing, you must have enough evidence to support you.And of course you need to know the knowledge,also some times it is a little fortune here.