History <a href=" http://ngamgirl.net/radiosynthesis.pdf#envy ">essay on bhagat singh in english</a> Commercial shippers use another, similar app called Whale Alert along the U.S. Atlantic Coast to try to steer clear of critically endangered right whales, only 400 of which remain in the East Coast, said Brad Winney, co-founder of mobile technology company Conserve.IO, developer of both apps.