Albert Einstein He developed the general theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).

The first integrated circuit invented by the engeneer Jack S. Kilby1 (1923-2005) contained only a few transistors. Texas Instruments.
Mini oscilloscope DS203

Fully portable

6 hours of battery

Full review of specs and small tests

DS230 review
Let's have a look at this amazing mini oscilloscope. Let's get it started.