A long-theorized geometric object has finally taken shape. Named Bille, this monostable tetrahedron could transform the design of spacecraft and robotics. We need to rethink the shape of lunar landers ...

Take a weeble, run it through a Minecraft filter, build it almost entirely of open air, and what have you got? It’s called a Bille, and as a monostable tetrahedron – that is, a four-sided shape that ...

Here is a monostable multivibrator using IC CD4538. It is a precision monostable/astable multivibrator IC free from false triggering. This can be used for various application in which precise timing ...

A tetrahedron is the simplest Platonic solid. Mathematicians have now made one that’s stable only on one side, confirming a decades-old conjecture. In 360 BCE, Plato envisioned the cosmos as an ...

A four-sided shape that will always come to rest on the same side no matter what side it starts on has been built by mathematicians, decades after it was first proposed to exist. Mathematicians have ...

How to build a circuit that converts capacitance into a pulse train. Test results of the circuit design. The circuit in Figure 1 allows you to convert capacitance into a pulse train by using a ...

This Design Idea describes a simple way to form a reliable astable or monostable multivibrator from a set/reset latch. You may find it useful because it lets you minimize the number of standard ...