Petr

Petr

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Petr
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0474205c46f8d70dc4a833ae6ca5b404.jpg 500×1,126 pixels

0474205c46f8d70dc4a833ae6ca5b404.jpg 500×1,126 pixels

PVC Crossbow my husband would love this

Here is a working crossbow I built with synthetic plastics. The idea was to make a crossbow that wouldn't need metal or wood parts. Only the trigger has two metal bolts in it. The weapon took a med.

Můj zubař byl ohromený, když jsem mu řekl návod, jak se mi ulevilo od příšerné bolesti zubů

Můj zubař byl ohromený, když jsem mu řekl návod, jak se mi ulevilo od příšerné bolesti zubů

The Wave Pump -  This is a wave-driven drainage pump with no moving parts. It can cheaply be made of concrete and may be useful where the sea level is rising.

The Wave Pump - This is a wave-driven drainage pump with no moving parts. It can cheaply be made of concrete and may be useful where the sea level is rising.