Amazon Technologies, Inc.

Shuki Binyamin

Stephen Andrew Brodsky

Joseph Rozenfeld

Robin Alan Golden

Aaron-Kenneth Karl Rehaag

A unique identifier of an expression which refers to a cell of a data sheet is stored in a repository. In an application comprising an operation based on evaluating the expression, the expression is indicated by the unique identifier. In response to detecting a write directed to the cell, a modified version of contents of the cell is stored without re-evaluating the expression. The expression is re-evaluated in response to determining that the operation of the application is to be implemented.

Expressions management service for data sheet-based applications

A system comprises a hollow body forming a closed loop channel; one or more electromagnetic coils on the hollow body; a free-moving magnetic object in the channel; and a control system configured to control the one or more electromagnetic coils to cause the free-moving magnetic object to rotate within the channel during an acceleration phase and to cause one or more magnetic collisions with at least one of the one or more electromagnetic coils during an energy transfer phase, the one or more magnetic collisions causing a directional movement of the system.

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Los Altos, CA, United States of America

Shuki Binyamin