From: daniel watson <ozzloy@gmail.com>
Date: Sat, 11 Jun 2016 20:58:27 +0000 (-0700)
Subject: add check on screw head
X-Git-Url: http://challenge-bot.com/repos/?p=challenge-bot;a=commitdiff_plain;h=7a2e64366e6b5d5337a543818278043878bd97e6

add check on screw head
---

diff --git a/curriculum/challenge-bot.scm b/curriculum/challenge-bot.scm
index 22aef74..beefcb4 100644
--- a/curriculum/challenge-bot.scm
+++ b/curriculum/challenge-bot.scm
@@ -202,7 +202,9 @@
                       the screw body?])
            (item [what about 2 inches?
                        how many times will the thread wrap around two
-                       inches of the screw body?]))]))
+                       inches of the screw body?])
+           (item [where can a tool exert turning force on
+                        the screw?]))]))
     (subsubsection
      :title [fasten the arduino board to the deck]
      (p [push the 6-32 screw into the deck from the underside and at the