Nasa's mega rocket has been moved to the launch pad in Cape Canaveral, Florida, as the final preparations get underway for the first crewed mission to the Moon in more than 50 years.
Buying a camera for travel photography, sports photos or vlogging is a bit trickier. Here, you need to choose either a compact camera with a fixed lens or a mirrorless model that supports removable lenses.
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Finally, really small actuators made using traditional electric motors tend to get too hot for their own good at such scales – another headache.
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