10680
EXPLORE
LATEST
ABOUT
AUTHORING AREA
PARTICIPATE
Your browser does not support JavaScript or it may be disabled!
When Do the Three Hands of an Analog Clock Overlap?
There is an interesting puzzle based on old-fashioned analog clocks.
Question:
How many times a day are the three hands of a clock exactly in line? What are the exact times? How can you calculate them?
Contributed by:
Frederick Wu
SNAPSHOTS
DETAILS
Answer:
This Demonstration solves this puzzle by finding the 12 times.
Snapshot 1: the first moment that the three hands overlap is at 0:0:0 or 12:00:00
Snapshot 2: the second moment is at 1:05:05
Snapshot 3: the last moment is at 11:59:59
Tip:
The "static" option is for turning the three hands to any position you want.
RELATED LINKS
Always the Right Time for
Mathematica
…
(
Wolfram Blog
)
An Automatic Analog/Digital Clock
(
Wolfram Demonstrations Project
)
An Analog Clock
(
Wolfram Demonstrations Project
)
PERMANENT CITATION
Frederick Wu
"
When Do the Three Hands of an Analog Clock Overlap?
"
http://demonstrations.wolfram.com/WhenDoTheThreeHandsOfAnAnalogClockOverlap/
Wolfram Demonstrations Project
Published: October 29, 2008
Share:
Embed Interactive Demonstration
New!
Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site.
More details »
Download Demonstration as CDF »
Download Author Code »
(preview »)
Files require
Wolfram
CDF Player
or
Mathematica
.
Related Demonstrations
More by Author
24-Hour Analog Clock
Pete Boardman
An Analog Clock
Stephen Wolfram
An Automatic Analog/Digital Clock
Rudolf Muradian
Analog & 24-Hour Digital Clocks
S. M. Blinder
Astronomical Clock
Erik Mahieu
Alarm Clock
Ruben Alvarez Bediaga
Binary-Coded Decimal Clock
Michael Croucher
Equal but Opposite Percentage Changes Do Not Cancel
Michael Schreiber
Three Connected Vessels
Jaime Rangel-Mondragon
Fingerspelling Sign Language Using a Hand Model
Stewart Dickson and Shawna Martell
Related Topics
Everyday Life
Puzzles and Recreations: Intermediate
School Puzzles and Recreations
Browse all topics
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to
Mathematica Player 7EX
I already have
Mathematica Player
or
Mathematica 7+