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Being_John_Napier
Being_John_Napier
So you are tasked with discovering how to use the properties of logarithms and a table of common logarithms to multiply, divide, and exponentiate two numbers just like folks did before calculators and slide rules. First, try to figure it out using your own brain. If that fails, try enlisting the help of someone else's brain: the Internet, your really smart friend, your teacher. Your grade will not come from the completion of this sheet. You will have to do 3 similar problems in class for your project grade, so make sure you really understand how these methods work.
Being_John_Napier
Being_John_Napier
Common_Log_Table
Common_Log_Table
Realize that you cannot use a calculator on this project. So to evaluate a particular logarithm, use the handy Common Log Table, which I found somewhere on the Internet. Nowadays, we would just find the logs of numbers by pressing buttons on our calculators, but it wasn't always so. You may notice that this table of logs is for numbers 1.0 to 10.0, but the numbers you have to multiply and divide are in the hundreds. I wonder how you will overcome this shortcoming.
Project_Answers
Project_Answers
Project_Ans
Project_Ans
Open the Word Document to check your answers. To open the file, you will need a password. The password is the first three digits from Q1 as read from left to right. If you can't open the file, then you need to do some more research.
Project_Vids
Project_Vids
Log Tables
Log Tables
Despite sounding like a piece of cabin furniture, log tables, as Professor Bowley explains, helped increase the speed and accuracy of calculations in the olden days. Numberphile. Duration_5_09
Log Tables (Extra Bit)
Log Tables (Extra Bit)
A continuation of the previous video, Professor Bowley explains how John Napier developed the first log table. Numberphile. Duration_5_43
Napier's Bones - DIY
Napier's Bones - DIY
The Post Apocalyptic Inventor demonstrates how to use and make Napier's Bones, another invention of John Napier that functioned as a precursor to a digital calculator. Well, a calculator that only does multiplication and division. Note that these rods do not use logarithms. Duration_13_48
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