How has science affected our lives in the last two hundred years? Think of housing, medicine and war. ( 10-15 zdań)

I think the most important discovering for medicine took place about 50 years ago, when James Dewey Watson and Francis Crick discovered, that DNA has discovered that DNA is bulit on the double-helix pattern. It caused that biology moved on more quickly. Thanx to that discover now we hav molecular bilogy, more detailed genetic discovers... Maybe in not distant future we will find a medicine for a cancer or Aids. Who knows?