Abstract: The present disclosure relates to a gripping device includes a casing and at least two gripping assemblies. Each of the gripping assembly includes a fingertip, a connecting rod assembly and an attaching assembly. A first end of the connecting rod assembly is connected to the fingertip, and a second end of the connecting rod assembly is rotatably connected to the casing. The attaching assembly is disposed on a side of the connecting rod assembly facing the target object to be gripped. The gripping device is configured to be switched between a first gripping mode and a second gripping mode. In the first gripping mode, the gripping device clamps the target object by the fingertips cooperating with each other. In the second gripping mode, the gripping device adheres and/or adsorbs the target object by the attaching assemblies cooperating with each other to implement a gripping operation.

Abstract: The subject matter described herein relates to a method for collection of atmospheric ions subject to an electron avalanche associated with a gas multiplication effect between parallel plate collectors. A voltage source can be provided. The voltage source can provide a voltage that can cause a high electric field between two consecutive plates of the plurality of parallel plates. The high electric field can cause an electron avalanche that can cause electron multiplication. Energy associated with these multiplied electrons can be extracted, and studied to give insight into where the most abundant source of atmospheric charge is located. Related apparatus, systems, techniques and articles are also described.