Skip to content
Logo

Hackaday

  • Home
  • Blog
  • Hackaday.io
  • Contests
  • Submit
  • About

Day: March 26, 2006

How To Reverse Time

March 26, 2006 by Eliot 24 Comments

[moddy] sent in a couple of his projects that would probably be entertaining on a Sunday afternoon. The first one is how to reverse the rotation of a battery powered travel clock. It’s just a simple modification of the plate the coil is wrapped around. The second is adding 9V battery terminals to a cell phone. Neither project is practical, but they’re still fun.

Continue reading “How To Reverse Time” →

Posted in Cellphone Hacks

Search

Never miss a hack

Follow on facebook Follow on twitter Follow on youtube Follow on rss Contact us

Subscribe

If you missed it

  • The Need For Speed: Internet Speed Measurement (or DIY?)

    2 Comments
  • Postal IRCs Are Almost A Thing Of The Past

    11 Comments
  • Launching Rockets Is Hard, Bring Them Back Is Harder

    16 Comments
  • Putting Some Zig In A Linux-Based 3D Printer

    17 Comments
  • UDP Broadcasting And The Joys Of IPv4 Subnetting

    35 Comments
More from this category

Our Columns

  • FLOSS Weekly Episode 876: There Is No Money Fairy

    No comments
  • Compile Here, Run Everywhere: Crosstool-Ng

    3 Comments
  • Art of 3D printer in the middle of creating a Hackaday Jolly Wrencher

    Giving Resin 3D Printers Another Shot After Six Years

    21 Comments
  • Hackaday Europe 2026: Project Gigapixel

    10 Comments
  • Hackaday Links: July 19, 2026

    6 Comments
More from this category

Search

Never miss a hack

Follow on facebook Follow on twitter Follow on youtube Follow on rss Contact us

Subscribe

If you missed it

  • The Need For Speed: Internet Speed Measurement (or DIY?)

    2 Comments
  • Postal IRCs Are Almost A Thing Of The Past

    11 Comments
  • Launching Rockets Is Hard, Bring Them Back Is Harder

    16 Comments
  • Putting Some Zig In A Linux-Based 3D Printer

    17 Comments
  • UDP Broadcasting And The Joys Of IPv4 Subnetting

    35 Comments
More from this category

Categories

Our Columns

  • FLOSS Weekly Episode 876: There Is No Money Fairy

    No comments
  • Compile Here, Run Everywhere: Crosstool-Ng

    3 Comments
  • Art of 3D printer in the middle of creating a Hackaday Jolly Wrencher

    Giving Resin 3D Printers Another Shot After Six Years

    21 Comments
  • Hackaday Europe 2026: Project Gigapixel

    10 Comments
  • Hackaday Links: July 19, 2026

    6 Comments
More from this category

Recent comments

  • list on An LLM In The Kitchen
  • Brian on Old TV Vacuum Tube Turned DIY X-Ray Machine
  • Cristiano Reis Monteiro on Old TV Vacuum Tube Turned DIY X-Ray Machine
  • Gilliam Vespa on Open Source Vacuum Avoids Cloud
  • Y Knot on Old TV Vacuum Tube Turned DIY X-Ray Machine
  • Arlyst on Open Source Vacuum Avoids Cloud
  • Arlyst on Open Source Vacuum Avoids Cloud
  • DerAxeman on The Need For Speed: Internet Speed Measurement (or DIY?)
  • Nick on MyMiniFactory Has Acquired Thingiverse Bringing Anti-AI Focus
  • spaceminions on A Smarter DIY Air Filter
Logo
  • Home
  • Blog
  • Hackaday.io
  • Video
  • Submit A Tip
  • About
  • Contact Us

Never miss a hack

Follow on facebook Follow on twitter Follow on youtube Follow on rss Contact us

Subscribe to Newsletter

Copyright © 2026 | Hackaday, Hack A Day, and the Skull and Wrenches Logo are Trademarks of Hackaday.com | Privacy Policy | Terms of Service | Digital Services Act | Do not sell or share my personal informationCookie Management
Powered by WordPress VIP

Loading Comments...