One of the most significant challenges is building an airplane had to do with "propulsion", since the technology that allowed motors to have enough energy to lift an airplane into the sky with a passenger wasn't available for most of history.
Answer:
British desire for natural resources, slave labors and political dominance brought about long-term effects to South Africa, the negative effects include widespread racial discrimination and economic exploitation, but there were few positive effects which were the advances in agriculture, mining industry and education.
Explanation:
To make something nice to them