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Currently I'm working on quadcopter frame. Though most of the frame is aluminum angle iron, the engine mounting pieces, legs, electronic platforms are all 3d printed to fit. I'm personally not very great with power tools or other tools for machining, cutting, or carving parts. The 3d printer is far more accurate at placing screw holes and making things the right size than I am. I print it and as long as I designed the parts with the right size it just fits.
Though having a delivery truck that delivered 3d printed parts? I don't see that as being very useful. You don't have the turnaround time if you make a mistake in the design. It'd only be good for pre-designed items not self designed.
As a CS person I have been in a unique position to study broadly. To program for a scientist you have study until you understand at some degree what is going on. It program for finance the same is true. As a CS person you have a framework of how to make the computer run, but to understand what the computer needs to do you need to understand the science, business, medical, finance, statistics, math, language, and any other wide variety of topics. It's one of the things that attracted me to computer science in the first place is a love of learning. I've used my programming skills professionally in bio-medical sciences, cryptography, mathematics, business, meteorology, and other fields. In my hobbies I've use CS in electronics, physics, biology, art, physical fitness, navigation and language art. I don't claim I'm an expert in any of the individual fields, but there is an above level of exposure to a greater degree of knowledge. Of course that might be that I love learning, not something that having a CS degree gave me or being able to program.
"To establish Post Offices and post Roads;
To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries"
I've worked from home for about 14 years, and my software has worked from home for at least a decade. We work well "together" and have been successful. The remote work place has some challenges, but we've adapted. When offering remote support to customers we all are better at it and have a good idea what can be understood and how to go about the work.
One of the big advantages is having the space needed to really think free from distractions of coworkers. I'm definitely more productive.
If your employees won't work unless they are watched you have a management problem not a worker problem. Your employees obviously don't feel the success of the company is to their own advantage. They obviously don't feel like your giving them enough, and I don't necessarily mean money. Does the job make them feel important? Do they feel like they are contributors? Are you as a manager undermining the good they have done?
The idea that you could send one of these drones in a sensitive environment and leave it there seems off. Yeah, the air frame biodegrades, but not the motors, electronics, and the most toxic part the battery.
Don't just focus on "science" or you'll kill all interest. History is just as important. Science of itself isn't nearly as interesting as adding the human side to it. The stories of how the great ideas of our times came about and how those ideas have been used can make the knowledge come to life in a way that science by itself cannot.