How have advances in space exploration led to technologies adapted for personal use? How have advances in space exploration led to technologies adapted for personal use?

The World is now characterized by a large network of satellites delivering continuous wireless communications.

Explanation:

Initially created for the military purpose the global positioning system ( GPS) for precision navigation and targeting of weapons, it has become an everyday catch for communication purposes around the globe. Infrared ear thermometers which are a NASA-derived innovation, estimate the concentration of energy emitted by the eardrum in the same way that the temperature of the planetary objects is measured. Consumer products such as compact wireless vacuums, compress-dried foods, memory foam, cordless headsets, LED lighting, scratch-resistant eyeglass lenses, and several other commonly associated products all have benefited from research and innovation in space technology. Modern laptops are direct descendants of The Shuttle Portable Onboard Computer which was designed for the space shuttle programs in the early 1980s. 

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.