Analyses of its inner ear confirm that this dolphin had excellent hearing abilities in the high-frequency range, which is very similar to modern dolphins. The animal lived about 22 million years ...

Glass- and ceramic-based insulating materials currently dominate the scene, but their high cost and ... and the frequency dependence of D k and D f is also very small. Another particularly ...

and the most modern 74 versions hide some impressively high specifications. A good example comes via a project from [Scott, AJ4VD], a very simple frequency counter that uses a single 74 series ...