WorstPlans.com updates every Monday!

Your weekly source for terrible plans and ideas!

Tag: thermodynamics

Never burn yourself with scalding hot coffee again, with this one new and majestic type of curly drinking straw! Impress your companions at a banquet with this sophisticated drinking accessory.


Sometimes, you want to drink a beverage, but it’s too hot.

The issue:

You could just wait for it to cool off naturally, but who has time for that!

And if you were drinking from an insulated thermos, this cooling-off process could take hours.


The basic idea is simple: an ultra-long curly straw that would give the liquid some extra time to cool down as it leaves the cup (Figure 1).


Fig. 1: Since this curly straw is so long, there’s extra time for a hot beverage to cool down as it travels through the straw.

However, a standard curly straw will have a minimal cooling effect. Thus, an array of heat sinks are added to the straw, as shown in Figure 2.



Fig. 2: The straw is covered in heat sinks like those used in a desktop computer. Hot liquid (indicated in red) quickly cools off as it travels down the heat-sink-enhanced straw.

Alternatively, a telescoping design could allow the enjoyment of both hot and cold beverages using the same straw (Figure 3).


Fig. 3: An extendable version of this straw could be useful for both hot and cold beverages. For a cold beverage (A), the straw is collapsed, accordion-style to minimize travel time for the liquid. For a hot beverage (B), the straw is extended out, giving the liquid a longer time to cool down as it travels along the incredibly long straw.


Don’t drink from a cup or bowl like an animal—only use this fancy straw for your future beverage needs!

PROS: Cools liquid to the optimal temperature for maximum efficiency of consumption. If widespread distribution can be achieved, it will save millions of hours per year (worldwide) that otherwise would have been spent waiting for drinks to cool.

CONS: None!

The “self-control facilitation grate” is a new home oven invention that saves the roof of your mouth from being melted by molten pizza cheese. Ask for—no, DEMAND—this option in your next high-end kitchen appliance purchase.


When baking a pizza in an oven, it’s it’s easy to remove the pizza from the oven and instantly start devouring it.

The issue:

Unfortunately, molten cheese (Fig. 1) cannot coexist with human tissue, so this causes severe burns to the impatient pizza-eater.


Figure 1: It’s easy to remove a still-too-hot pizza from an oven and be punished for your impatience.


We can prevent further occurrences of this culinary tragedy by adding a secondary grating to the oven.

This secondary “pizza self-control facilitation grating” is a thin set of metal wires that extend across the opening to the oven (Figure 2).

After a pizza is done, the grating stays closed for a few additional minutes, while the pizza cools. Once the pizza has reached an acceptable temperature, the grating retracts and the user may obtain their pizza.

(Activating this grating would be done by selecting “pizza” mode when first setting the temperature. This would be similar to how a “popcorn” button on a microwave is used).



Figure 2: This shows the “pizza grating” in action. The grating (shown here in blue) does not retract until several minutes after the pizza is done. If this method is insufficient to allow the pizza to cool (it is, after all, still in a very hot oven), the grating could be adapted to a “pizza cage” cube shape that would be attached to the baking rack.

Thermodynamic issue:

The pizza may become overcooked, since it must remain in the (hot) oven, yet it is also expected to cool off.

This may be solvable by either opening the oven slightly before the pizza is done, or by allowing the grating to be a complete cube shape (a “pizza cage”) that can slide out along with the baking racks, thus removing the pizza from the source of heat while still preventing the impatient pizza-eater from immediately accessing it.

PROS: Solves the health hazard of pizza-related first-degree burns. Possibly reduces your insurance premiums.

CONS: May be mechanically complex, due to the conflicting goals of 1) cooling off the pizza and 2) keeping the pizza in close proximity to (or inside of) a 400º oven.