Tightrope walking inexperienced funambulists will often walk barefoot so that the wire can be grasped between the big and second toe. This is more often done when using a rope, as the softer and silkier fibres are less taxing on the bare foot than the harder and more abrasive braided wire. The word "funambulism" or the phrase ""walking a tightrope"" is also used in a metaphorical setting not referring to any actual acrobatic acts. For instance, politicians are said to "walk a tightrope" when trying to balance two opposing views with little room for compromise. The term can also be used in
A calorie is a calorie other values than just energy in calories. A calorie is a calorie "A calorie is a calorie" is a tautology used to convey the speaker's conviction that the concept of the "calorie" is in fact a sufficient way to describe energy content of food. The tautological phrase means that regardless of the form of food calorie a person consumes (whether a carbohydrate, protein or fat calorie) the energetic value of such a calorie, is identical to any other. One dietary calorie contains 4,184 joules of energy. With this knowledge, it is easy to assume that all calories have equal value.