A cast, like a television news team, on te web. If you have ever heard of Icarly... that's exactly what a web cast is.
the answer is 3 days
The jumping spider will release webbing from its spinnerets as a sort of bungee line. This way, it is able to scale walls and vertical inclines without falling to the ground completely. Baby spiders...
The do them alot
they can cast a thin bit of thread whilst falling so they might grab onto something i think