Truely South African inventions

So what has put South Africa on the map?? Here are some inventions and firsts that have put South Africa on the world map:

1. The first heart transplant was done in South Africa by Chris Barnard
2. The automated pool cleaner by Ferdinand Chauvier
3. Appletiser - an international premium fizzy drink
4. Pratley Putty - used in the mission to the moon.
5. Dolosse - a concrete structure used to protect the coastline from serious sea storms that is used internationally
6. The ability to derive oil from coal by Sasol.

So yes we have some smart people here!