## How to ```Kin tangaza_amakuru("This is message will be printed on user's screen") ``` > This is message will be printed on user's screen Sometimes you'll need to write multiple things to the screen. ```Kin tangaza_amakuru("More ", "than ", "one ", "message ", "can "...
Pocket calculators can do all these things and more using tiny electronic switches called transistors. Let's take a peek inside a calculator and find out how it works!Photo: This Casio fx-570 calculator has given me sterling service since 1984 and is still going strong today. In case you'...
How Things Work/Flush Toilet: Here's an alternative explanation of flush toilets with some nice cutaway diagrams showing the mechanism inside very clearly. Save Water: The Waterwise campaign explains how toilets waste vast amounts of water—and what you can do to make a difference....
However, another reason to make a device run arbitrary code is tobreach security.If the owner of a system assumes that it can only do one specific thing, like operate a dishwasher, they may not take precautions against hacking. But if the system is actually Turing-complete, a hacker could ...
Because humans are warm-blooded, human breath is slightly warmer than the surrounding air, and therefore has slightly fewer molecules per unit volume. This is also true of hot air balloons, but they operate at much higher temperatures than human breath and are therefore able to obtain a greater...
albeit they operate differently to bring that about. The Free Exercise Clause is a rights-conferring clause that vests in religious individuals, including protection for any religious organizations they may form. On the other hand, the Establishment Clause is a structural clause that is about limitin...
The green-blue circuit board you can see in the first photo includes the disk controller, a circuit that allows the computer to operate the drive's mechanisms and read/write data to and from it.The platters are the most important parts of a hard drive. As the name suggests, they are ...
How does a hub motor differ from an ordinary motor?Photo: One of the aluminum mesh wheels from NASA's lunar roving vehicle, an electric car used on the Moon in the early 1970s, with tires made from zinc and steel. Though not exactly hub motors as such, each wheel was nevertheless ...
If you're interested in how things have moved on, compare this chart with the one I drew a few years ago using 2017 figures, courtesy of the Global Wind Energy Council and World Bank. I think another interesting thing about this chart is not how much wind energy we're making, but ...
The really interesting thing about the ocean is not how hot it is, but the difference in temperature between the surface (where the Sun keeps the sea relatively hot) and the depths (where the water, never warmed by the Sun, is considerably cooler). As any engineer knows, a temperature ...