text: In paragraphs 6 and 7 the author somewhat refutes his prior information from paragraph 5. The author does this by saying that although the blimp will keep scientists in survivable condition it will not aid them in collection surface samples or allow them to take pictures of the ground due to the overlaying carbon dioxide blocking the view of the planet. The author then goes on to explain that scientists have found a new solution to this problem. They decided that modren robots are too "weak" to explore the planet of Venus due to the amount of technology inside of them. If one wire comes undone then the whole robot is unusable. In order to combat this, the author states that scientists are planning on using mechanical computers due to their low use of actual technology. The author very effectivly refutes the opposing claim (the idea of the blimp) and then gives an example that shows how that original idea can be improved.