Archives for August 2009

Exploding Hollow Concrete Spheres!!

How Temperature Caused a Hollow Sphere Project to Literally Blow Up! I received an email from Sue, who wanted to share with me this rather interesting bit of info: You are my hero! I've been after the instructions on duplicating Little & Lewis spheres for a year! I did some on my own and they exploded on my driveway (cold ball from house, 90 … [Read more...]

Hollow Garden Sphere Mold Question

Please Explain Deflatable Balls for Making Hypertufa or Concrete Hollow Garden Spheres I received an email from Debbie asking me: In the instructions given for the Hypertufa Hollow Garden Sphere, one of the materials needed was a deflatable ball. Can you advise me where I would get such a ball? What size does it come in and what type material is … [Read more...]