Electromagnetic theory and experiment gave us the telephone, radio, TV, computers, and made the internal combustion engine practical - thus, the car and airplane, leading inevitably to the rocket and outer-space exploration.

It turns out that if you optimize the performance of a car and of an airplane, they are very far away in terms of mechanical features. So you can make a flying car. But they are not very good planes, and they are not very good cars.

As fandom grew more variegated, genzines reflected a broadening of interests, carrying personal columns of humor and reflection, science articles, amateur fiction, stylish gossip, and inevitably, thoughtful pieces on the future of fandom.

This is just like putting in an airplane engine,

I've made club songs, and I've made radio songs, and I've made the car songs.

Indeed, the history of 20th century physics was in large measure about how to avoid the infinities that crop up in particle theory and cosmology. The idea of point particles is convenient but leads to profound, puzzling troubles.