The Voyage of the Bathysphere

thingiverse

This text appears to be a lesson plan for a science project involving Sphero robots, programming in OrbBasic, and designing a Bathysphere. Here's a breakdown of the key points: **Setting up the Robot** 1. Download and install the OrbBasic app on your Bluetooth-enabled smart device. 2. Pair Sphero with OrbBasic and press the Create button. 3. Enter a program name and press the New Program button. **Programming in OrbBasic** * Use integers, not decimals. * Negative integers must be declared as expressions (e.g., X = 0 - 1). * The maximum level for nesting expressions is 4 levels deep. * The maximum print string length is 32 bytes. **Team Tasks** * Mathematics: Determine an equation for measuring depth traveled by the Bathysphere and identify factors that could cause measurement inaccuracies. * Physics: Study Sphero sensors to measure depth, communicate with the robot underwater, detect when the Bathysphere hits the bottom, and determine how much fishing line to attach. * Computer Science: Convert mathematics and physics products into a usable computer program in OrbBasic. * Technology: Assemble the Bathysphere, glue the skid to the slots, install Sphero inside, and bolt the top on. **Materials Needed** * 3D printed files for the Bathysphere replica * Sphero robot (SPRK or SPRK+) * OrbBasic App (Android or iOS version) * Large spool of break-resistant fishing line or filament (20-30 feet) * M4 screw bolt fasteners with matching nuts * Assortment of fishing tackle weights or other water-resistant weights * Fishing rod and reel * Tape measure * Stopwatch * Water-resistant pens or markers * Plastic cement or glue * Deep pool of water or deep open stairwell **References** * "Bathysphere" article on Encyclopædia Britannica * The Official William Beebe Web Site Overall, this lesson plan involves designing and building a Bathysphere to measure depth using Sphero robots programmed in OrbBasic. It requires students to apply mathematical and physics concepts, program in OrbBasic, and assemble the Bathysphere.