Governments play a major role in support of technology by crafting industry-specific measures, such as tax credits for research and development of new technologies and trade policies that support essential technology sectors.
Whether it be a barbell military press, seated shoulder press or some other machine variation, a basic overhead press has always been considered the single best exercise for building overall shoulder size and thickness.
Here is a graphic of the muscles used in push ups. Compare it with the following about bench press. Both will give you a bigger chest and some more arm and shoulder size. Push ups work the stomach more. I've been working out in the gym for more than 40 years. My advice to anyone who will listen is to do a lot of push ups. Yes, I know the bench will get you stronger than push ups, but it is push ups that will allow you to bench when you get my age.