Lucian Irimie
More ideas from Lucian
chess figures - SOLIDWORKS - 3D CAD model - GrabCAD

chess figures - SOLIDWORKS - 3D CAD model - GrabCAD

Perpetuum Mobile ? Perpetual motion describes hypothetical machines that operate or produce useful work indefinitely and, more generally, hypothetical machines that produce more work or energy than they consume, whether they might operate indefinitely or not.There is undisputed scientific consensus that perpetual motion in a closed system would violate the first law of thermodynamics and/or the second law of thermodynamics.Successful closed system perpetual motion devices are physically…

Perpetual motion describes hypothetical machines that…

The Zeppelin Bend (Rosendahl Bend)

“The Forgotten Zeppelin Knot” in Boating Magazine (March revealed how this knot was used until 1962 by the US Navy to tether its lighter-than-air ships

Sharpening Brad Point Bits - Sharpening Tips, Jigs and Techniques |

WoodArchivist is a Woodworking resource site which focuses on Woodworking Projects, Plans, Tips, Jigs, Tools

By Keith Pearl, see the build log by clicking the pic. I chose 4'' coaxial speakers to get a full range of sound and the Dayton T-amp module to drive the speakers and a single 1'' flared port. It turned out great and sounds best in small to medium sized rooms. I did change the color or the LED to green and added a chrome knob to achieve the look I was going for.

By Keith Pearl, see the build log by clicking the pic.

16 Old School Survival Skills | Clever Life Hacks And Emergency Preparedness Tips Every Preppers Should Know! by Survival Life at

These old cigarette cards from the early are full of survival wisdom. Learn about 16 old-school survival skills and how you can use them today.


[Johannes] has been reading Hackaday for years but this is the first project he& tipped us off about. It& a laser engraver built from a DVD burner diode (translated). It turned out so well we wonder.

How to Recover Data When Your Hard Drive Goes Belly Up

Stillbonsoftwares provides Pen Drive Recovery, hard drive data recovery file repair, file migrator, forensic test apps and clouds backup services.