text: Scientists now have been testing simplified electronics made from silicon carbide in a simulator that simulates the chaos of Venus's surface, and so far they have lasted weeks in those conditions. This was found in the passage and it says "... some simplified electronics made of silicom carbon have been tested in a chamber simulating the chaos of Venus's surface and have lasted for three weeks in such conditions." Another project the NASA is working on to get to the planet is a technology from the 1800's and played an important role during World War two, these devices make calculations by the use of gears and levers. This was also found in the passage and it says "Another project is looking back to an old technology called mechanical computers. These devices were first envisioned in the 1800's and played an important role in the 1940's during World War II." "... but these devices make calculations by using gears and levers and do not require electronics at all."