enough against the gravity on Mars? WH: There will be opportunities for scientific work
and to look for gold or other metals. So people may become rich or famous. LQ: How healthy will the people be, I wonder?
PART 1
ZN: Hello everyone. Today I’m very pleased to have our famous inventor, Mr Xiao Feng, with me. I hear, Mr Xiao, that you’ve invented some really useful things.
How can “Wonderworld” make sure there is enough water?
“Wonderworld” will make sure there is enough water by collecting some from under the planet’s surface. After use, this water will be cleaned and recycled so that it can be used as rain to water crops and provide clean drinking water. Everyone will put their dirty water in special tanks and animals will have to go to the toilet in special places. Bacteria will clean this dirty water so it can be used again.