Previous in Forum: Meet Me at the RF Café   Next in Forum: Microsoft and the Pay-Per-Hour Computer
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
8 comments
Rate Comments: Nested
Chris Leonard
Friend of CR4

Join Date: Dec 2004
Posts: 1776
Good Answers: 35

Remember Geometry 101?

05/22/2006 2:25 PM

A solid object with six sides has been assembled by gluing together several identical cubes. Can you draw the missing view of this object? There are other brainteasers at this site, appropriately named Brainteasers, including riddles, matchsticks, paradoxes, and illusions. The motto of the site: "Is your brain stuck on some problems? Be Happy! It is good proof that you have a brain!"

The preceding article is a "sneak peek" from the June edition of the ElectroBytes newsletter from GlobalSpec. To stay up-to-date and informed on industry trends, products, and technologies, subscribe to ElectroBytes today.

__________________
 Off to take on other challenges. Good luck everybody! See you around the Interwebs.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Gunner
Active Contributor

Join Date: Mar 2006
Posts: 12
#1

remember geometry

05/23/2006 8:16 AM

6 equal sides would be a square 6 non-equal sides would be a rectangle next.....
Register to Reply
BRodda
The Feature Creep

Join Date: Feb 2005
Location: Boston, MA
Posts: 990
#2
In reply to #1

Re:remember geometry

05/23/2006 11:00 AM

It looks like they are saying that all the blocks are views of the same box. They really should have them labeled "top view", "right side view" etc.
The question is if we know that all the pieces that comprise the box are identical. (by that I assume same shape and color pattern) what would the missing view look like. There are some slightly darker lines in the drawing, I take those to be where there are separate pieces.
Interesting brain teaser; just badly presented and illustrated.

__________________
 "The future is here. It's just not widely distributed yet." -William Gibson
Register to Reply
STL Engineer
Guru
Hobbies - HAM Radio - New Member Popular Science - Weaponology - New Member United States - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Jan 2006
Location: Saint Louis, Missouri USA
Posts: 1929
Good Answers: 9
#3
In reply to #2

Re:remember geometry

05/23/2006 11:47 AM

BRodda said:

"Interesting brain teaser; just badly presented and illustrated"

I disagree. The puzzle, as presented, is soluable. It's just not as EASY as it would be if the views were labelled! Then I could just draw it up in my CAD system, et voila'!

Reminds me too much of a Rubix cube puzzle, which I always hated! (grin)

__________________
 "What, me worry?" Alfred E. Neuman
Register to Reply
BRodda
The Feature Creep

Join Date: Feb 2005
Location: Boston, MA
Posts: 990
#4
In reply to #3

Re:remember geometry

05/23/2006 11:59 AM

I stand by the whole "smash and reassemble" method of Rubix's Cube solving.

__________________
 "The future is here. It's just not widely distributed yet." -William Gibson
Register to Reply
Tiny Elvis
Power-User
Spain - Member - New Member

Join Date: Dec 2005
Posts: 116
#5
In reply to #4

Re:remember geometry

05/23/2006 12:17 PM

I'd get a side or two then rearrange the remaining stickers.

__________________
 Just like regular Elvis...only smaller.
Register to Reply
STL Engineer
Guru
Hobbies - HAM Radio - New Member Popular Science - Weaponology - New Member United States - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Jan 2006
Location: Saint Louis, Missouri USA
Posts: 1929
Good Answers: 9
#6
In reply to #4

Re:remember geometry

05/23/2006 12:18 PM

I liked to peel off the color stickers (after they became cheaper and used stickers instead of colored plastic!)and re-apply them to the correct faces! Made everyone think I was a genius! (Which I am of course, but in a different way.)

Or better yet, peel off the stickers and hand the all white cube to someone and ask them to solve it.

Talk about messing with someone's mind!

__________________
 "What, me worry?" Alfred E. Neuman
Register to Reply
BRodda
The Feature Creep

Join Date: Feb 2005
Location: Boston, MA
Posts: 990
#7
In reply to #6

Re:remember geometry

05/23/2006 1:43 PM

Neither of these is as cathartic as smashing it with a hammer after spending 20 min wrestling with one.

__________________
 "The future is here. It's just not widely distributed yet." -William Gibson
Register to Reply
Laser Jock
Participant

Join Date: May 2006
Posts: 3
#8

Cube

06/02/2006 10:06 PM

The 4 center blocks on the missing view would be unknown.
Register to Reply
Register to Reply
Have a Different Question?
8 comments
Copy to Clipboard

Users who posted comments:

BRodda (3); Gunner (1); Laser Jock (1); STL Engineer (2); Tiny Elvis (1)

Previous in Forum: Meet Me at the RF Café   Next in Forum: Microsoft and the Pay-Per-Hour Computer

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Communications & Electronics:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (75 right now)
Show Members
Advertisement