Polarising filters can be an essential part of a photography tool set, as they suppress glare, make blue skies pop and offer an additional way to control the light in your scene. And if you have some old electronics that you can mine for spare parts, you might already have a filter.
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Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.
One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.