The invention of the microscope, contributed to the discovery and accelerated research of microscopic, single cell and multi-cell organisms that are found all around our planet, this also led to our better understanding of pathogens such as germs, viruses, bacteria, fungi, parasites, and much more. <span />
Answer:
He made those who came to see him feel good.
He refused to "allow bodily disability to defeat his will."
He exercised to strengthen his body.
Women moved into the workforce to replace men who went in the military.
Draft boards.
Factories worked long and hard, many died of injuries or heart attacks to make sure our servicemen got what they needed, from bullets to socks.
gasoline rationing depended on your job.
Limited amounts of meat, sugar, coffee.
women's stockings were out, silk was needed for parachutes.
Ran your tires until nothing left and patched the heck out of them.
Planted "Victory Gardens" for fresh foods.
Collection of unused aluminum pans to build aircraft.
And the worst- bad news from the War Dept.