3 ms·
Does that mean the material can still fully burn when falling down from under 2000km altitude? Or would we see pollution for example from battery materials?
by aledalgrande 6y ago
Does that mean the material can still fully burn when falling down from under 2000km altitude? Or would we see pollution for example from battery materials?
- KiwiJohnno 6y agoThe original altitude is not relevant to how the item burns up. Its not the vertical velocity when it hits the atmosphere, its the horizontal velocity. Anything re-entering the atmosphere is subjected to temperatures around 8000 deg. Most things are just totally incinerated, unless they are well-enough insulated to withstand that temperature until they slow down from orbital velocity.