Explosive charge and tunnelling shield: what they have in common

1. Step 1. Explosive charge — is part of — Landmine. The charge.
2. Step 2. Landmine — uses — TNT. An explosive.
3. Step 3. TNT — works like — Dynamite. Two industrial explosives; TNT is safer to handle.
4. Step 4. Dynamite — works like — Tunnelling shield. Two ways of driving tunnels — mechanical and explosive.

Open Evothings