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It has been said before that the simplest inventions are usually the best, such a the lightbulb, and the cup... and I am here today to re-design the latter, the cup, and talk you through the process the whole way from concept to design (then to reality if you own a 3D printer) for all abilities of CAD (computer aided design) modelling skills (designed using AutoDesk's free CAD software 'AutoDesk 123D Design
First let's start with an impressive statistic: over 100 million people drink coffee EVERY morning in America alone, that means even more drink any hot beverages including tea and hot chocolate at least once a week, this introduces the need for a cup that's suitable for all the problems of drinking hot drinks. First Problem:
Let me introduce the first problem with cups (including mugs), they cause hot drinks to cool down rather quickly as they are not very insulating, this makes the need for an invention for something to keep hot drinks hotter for longer necessary so hot drinks can be enjoyed over a longer time without going cold... Yes, I know, that has already been invented, it's called a vacuum flask which is sold under many names such as the Thermos® Flask. This quite ingenious invention solves this problem by taking into account all three ways of heat loss from the drink: conduction, convection and radiation by having the drink surrounded by a silvered container separated by a vacuum, the vacuum prevents conduction and convection and the reflective surface of the silvered container prevents heat loss via radiation. Second Problem:
The second problem that arises when having hot drinks is essentially the opposite of the first, many hot drinks such as coffee are required to be made with boiling water and this introduces the problem that boiling water is too hot to drink and it can take a long time for a drink to cool down to a suitable drinkable temperature before we can drink it resulting in the inpatient of us and those of us on a tight schedule burning our tongues and throats. This problem is ironically worse when we attempt to solve the first problem of hot drinks cooling too quickly by using a product such as a vacuum flask which slows down the rate of cooling of the hot drink, this means more time is needed before a boiling hot drink reaches a suitable drinking temperature and can be drunk. So what can be done to solve both problems?... Coming up with a solution:
When I realised these two problems, I realised it would be almost impossible to create a cup to solve both as the required features are opposite, a cup that first cools the boiling hot drink to a drinkable temperature but then keeps it hot for as long as possible so it can be enjoyed for longer.
So to summarise, the cup must quickly lose heat from the drink but then prevent this happening once it has reached a drinkable temperature... So here is my solution...