Mr Markus Grocholewski shared some amazing photos with me where they took at 36Km above ground using a balloon. The shots are simply breathtaking, so I asked him why and how he managed to send a balloon and camera to space.
When choosing motors and propellers for mini quad, we often just listen to rumours, or what’s suggested by the manufactures. To determine the optimal motor and propellers combination for your quadcopter and multirotors, the most scientific way is to test it yourself. I tried to look for a ready-made motor thrust measuring stand, most of them are either too heavy (made of metal), too expensive, or out of stock. Looks like it’s time for some DIY fun.