Rate the following argument fragment on its writing, argument, and language skills:
Evidence: despite the risks, they are working on innovations that allow our machines to last long enough to contribute meaningfully to our knowledge of venus, and some simplified electronics made of silicon carbide have been tested in a chamber simlating the chaos of Venus's surface and have lasted for three weeks in such conditions. But now they use mechanical computers which were first envisioned in the 1800s and played lots of important roles in the 1940s, by comparison systems that use mechanical parts can be more resistant to pressure, heat, and other forces.

Score: 1