Bert Ehrmann
Dangerous Universe has been Bert’s web playground since 1998 when personal web sites were a rarity rather than the norm.
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The budgets of top-grossing movies over the years
// These are a sampling of the budgets of the highest grossing movies over the years. I didn't realize that Star Wars had such a comparatively low budget, about $41 million in today's dollars. To …
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Satellite Safari is a fun phone app
Whenever I go out observing the night sky I always see a random satellite or two. I wanted to know the names of what I was seeing so I downloaded the Satellite Safari app. The app identifies everythin…