One O'Clock Daily - Wednesday Science Links

• Weaponized RC-tricopter hunts ballons with fireworks (see also video above)


• British engineer designs his own heart valve implant


• Iron molecules repurposed to purify water


• New advances in nanotechnology metallurgy promise weight savings for the auto industry


• Digital Orrery lets you compare Copernican, Tychonian models of the solar system

Thanks to reader Mark for the tips on the metallurgy and water-purification articles.