Solar water panels

In the late 1970’s, when working on his diploma project (for upper secondary school, or high school), Rudolph Draaisma noticed something interesting. Using a simple setup, water in a container sitting outside on a cold but sunny winter’s day, could…
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Mars pneumatic lander

In late 2014, Rudolph Draaisma responded to a challenge to come up with a design to accommodate large payload landings on Mars. He came up with a “pneumatic lander”, that does just that. – Curator Download PDF on Mars Pneumatic…
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Atmospheric heat pump

In 2013, Rudolph Draaisma, presented his ideas for the atmospheric heat pump (AHP), offering a vast improvement over commonly used heat pumps today. – Curator Apart from a lower COP at moderate temperatures, the AHP beats the very expensive regular…
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