if you can only make standard glass, it's only a matter of piling more sand on the structure after it's cooled. Sand itself does a decent job of reflecting heat.
Leave a small circle at the top open for light and you have a decent shelter.-Terry
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"in comes a man in cameo with a american flag, because american flags float around in the wilderness." - Mike Keon
Please Remember: People are stupid... Programers are people.
-Terry
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"so listen up boy, or pornography starring your mother will be the second worst thing to happen to you today"
TF2: Spy
Leave a small circle at the top open for light and you have a decent shelter.-Terry
------
"in comes a man in cameo with a american flag, because american flags float around in the wilderness." - Mike Keon
Please Remember: People are stupid... Programers are people.
-Terry
-----
"so listen up boy, or pornography starring your mother will be the second worst thing to happen to you today"
TF2: Spy