Chapter 15. Apples and Oranges

There's an old saying, "That's like comparing apples to oranges." What it means is that it's sometimes unfair to compare dissimilar objects. I said "sometimes," because at other times it's completely fair. Suppose I hand you one apple and one orange. Which one is heavier? Which one has a larger diameter? These aren't unfair questions, are they?

So sometimes you can compare apples to oranges! And when it comes to your robots, there's a way for your robots to compare things, too—not apples and oranges, but numbers.


Remember that we discussed the concept of Logic back in Chapter 8? True or False? (If you said False, you need to go back and read Chapter 8 again!)

Well, NXT-G comes with a programming block called the ...

Get Lego Mindstorms NXT-G Programming Guide, Second Edition now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.