This document discusses physical computing and how computers can sense and control the physical world. It covers transduction, which is the conversion of one form of energy into another like electricity. It explains how electricity flows through circuits by always taking the path of least resistance and how all electrical energy must be used. It also discusses how schematics represent the electrical connections between components in a circuit, even if the physical layout is different, and how a multimeter can measure the flow of electricity through a circuit.

1. Physical computing: sensing and controllyn he pysical world with
computers
Chapter1:
Transduction: electrical basic.
transduction: conversion of one form of energy into another
Electricity v/s electronic.
electricity is controlled - electronitcs: do a lot of things
How electricity flows
electricity always favors the path of least to graund
all electrical energy in a circuit must be used
Chapter 3:
Translating sche:matics into circuits
schematics: geography map, indicates how components are cnected electrically
component in a circuit may not match the spatial arragement in te schematic,
but all of he conection must catch up .
Mulltimet: see the flow of electricity theough your circuit and components
Keeping yur circuits neat