Warning: before attempting a dome of larger size, make sure you read and understand the information on dome building found at:
http://www.earth-auroville.com/?nav=menu&pg=vault&id1=2&lang_code=en

...one person....

...two people...
...can only get three people, about 350 pounds, on the dome at the same time. I then jumped up and down on it by myself with no damage to the dome (or to me).

....after 10 minutes of simulated rain....

....and what remains after 23 minutes of simulated rain. Pure clay adobe; no cow manure, ashes, asphalt stabilizer, nor cement. Will use a two inch plaster of 10% cement and 90% adobe on final dome.