davenn's latest activity

The aperture of Hubble is round and the spider legs are connected to it. With the aperture function you've drawn you are not modelling...

Large quake offshore of SW Mexico I recorded it well on my seismo, here in Sydney, Australia (opposite side of the Pacific Ocean) M...

Element is the general term for each unique chemical species listed in the periodic table. Hydrogen, Helium, Lithium, Beryllium, Boron...

Hi Dave ... it's all because Hornbein didnt seem to realise that most metals have crystal forms as I stated earlier. He appeared to...

no, crystal size is irrelevent. a crystal is a crystal regardless of it is 1mm or 1m in size and it also doesnt matter if it is a metal...

My phone kept calling me Shirley. Looks like I left it in Airplane mode.

It is a quail seed block, I get them at Home Depot.

Metallic and crystalline are not mutually exclusive :wink: Almost all metals have crystalline forms Dave

Yeah, often found at mineral shows, they are lab grown, they dont normally grow like that in the ground I have a couple of pieces like...