Gaylord Nelson and Denis Hayes invented earthday.
Earth Day is celebrated on April 22nd every year.
Perhaps the earliest seismograph was invented in China A.D. 136 by a m an named Choko.
The seismograph was invented by the Chinese polymath Zhang Heng in 132 AD during the Han dynasty. Zhang's seismoscope was able to detect and indicate the direction of earthquakes from hundreds of miles away.
The rain alarm was invented by Andrew Grimes. It is a device that alerts users when rain is approaching so they can take necessary precautions.
It was not invented actually.. Manes was the person who was a herder in ancient greece.in his stick there was an iron screw .when one day he was going with the herd in the field his stick attracted towards a stone and he put that stone out .from there people started using it.SO HE FOUND THE MAGNET NOT INVENTED
it was invented so we could take care of the earth recycle, clean up the beach with all the trash and any other places that might need cleaning.
by reccling
people
No it's not.
Dirtgirlworld - 2009 Earthday 1-52 is rated/received certificates of: Australia:G
I realy dont know
The cast of Earthday Celebration 2003 - 2007 includes: Turbulence Suga Black Chuck Fenda Dj Kentaro
many people recycle and play out side.
earthday is the boss
The first Earthday was in 1970. It was started by Ira Einhorn .
some points on earthday
The people of the united states decided to start earth day