Tunneling or tunnelling may refer to: * Digging

tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

s (the literal meaning) **

Hobby tunneling Hobby tunneling is tunnel construction as a diversion. Usually, hobby tunnelers dig their tunnels by hand, using little equipment, and some can spend years or even decades to achieve any degree of completion. In some cases tunnels have been dug ...

Quantum tunneling In physics, a quantum (plural quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. The fundamental notion that a physical property can be "quantized" is referred to as "the hypothesis of quantizati ...

, the quantum-mechanical effect where a particle crosses through a classically forbidden potential energy barrier *

Tunneling (fraud) Tunneling or tunnelling is financial fraud committed by "the transfer of assets and profits out of firms for the benefit of those who control them". In legal terms, this is known as a fraudulent transfer, such as when a group of major shareholder ...

, a fraud committed by a company's own management or by major shareholders *

Tunneling protocol In computer networks, a tunneling protocol is a communication protocol which allows for the movement of data from one network to another. It involves allowing private network communications to be sent across a public network (such as the Internet ...

, transmitting one computer network protocol that is encapsulated inside another network protocol

See also