Find any errors in the Geekdad books? Spelling that offends your sensibilities? Grammar gaffes that grate? Facts that are, in fact, incorrect? Send ’em here, and we’ll put them up! Newer ones on top.

In The Geek Dad Book for Aspiring Mad Scientists:
The Emission Spectroscopy experiment idea should be credited to Matt Morgan, not Kathy Ceceri.

In the Map Your Backyard Ecosystem project, special thanks should be given to Anthony Ceceri, whose original map for the project he did in homeschooling was the basis for the example map used in the book.

In The Geek Dad’s Guide to Weekend Fun:

In the materials list for the Alien Drums project, the pipe fittings should be 2″, not 2-1/2″ (i.e. they should be the correct fittings to match the 2″ PVC).

In Geek Dad: Awesomely Geeky Projects and Activities for Dads and Kids to Share

In the 1st edition, submitted by Ellen D.:

Page 104, the balloon and video camera project. In the first paragraph:

“. . . If we can inflate the ‘normal’ balloon that comes with the kind of party kit you can buy anywhere to about one inch in diameter, then we’ll need about 16 balloons to get the kind of lift we want (each one-foot balloon would hold about 0.75 cubic feet of helium.)”

The “one inch in diameter” should be “one foot in diameter”

Page 177, the binary calendar uses three digits for the day, four for the month and five for the date (as seen on page 174-5). However, in the readings example set out at the bottom of 177, for Sunday May 17, is set forth as two, four and five digits:

01
0101
10001

rather than the correct

001
0101
10001