Regulated AC/DC Power Supply, 12V 1A Science at Home_Chemical Science Eight aluminum-shank tuning forks tuned

Eight aluminum-shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9/16 to 7 1/8 inches

Proves horizontal velocity does not affect vertical fall time through a push-button launcher that simultaneously projects one steel ball and releases another

Used with standard laboratory filter funnels

Four-times enlarged premium ear model with five separable sections exposes detailed outer

Regulated AC/DC Power Supply, 12V 1A Science at Home_Chemical Science Eight aluminum-shank tuning forks tunedDelivers six selectable outputs from 1. 5V to 12V at up to 1A, drawing both DC and AC simultaneously with short circuit protection via a 0. 4A rear panel fuse.