Measurement and instrumentation 3 min read
Optical fibre
In all developed countries, long-distance communication links (which used to be called ‘trunks’, by analogy to ‘trunk road’) nearly always…
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Transducer Engineering 1 min read
Different measurements of Capacitive Transducers
• Capacitive Level Transducer • Capacitive Displacement Transducer • Capacitive Thickness Transducer • Capacitive Strain Transducer • Capacitive Pressure Transducer • Capacitive Proximity Transducer • Capacitive Moisture…
Featured 6 min read
Digital Tachometer Circuit Operation using Microcontroller and their Types
A digital tachometer is a digital device that measures and indicates the speed of a rotating object. A rotating object…
Material Science 2 min read
Ultrasonic Test
High frequency ultrasonic (sound) waves are applied to the test piece by a Piezoelectric crystal. If the test piece is free from cracks, or flawless, then it reflects ultrasonic waves without distortion. If there are any flaws in the specimen, the time taken by the ultrasonic waves will be less as the reflection of these waves will be from flaw points and not from the bottom of the specimen. Cathode ray oscilloscope (CRO) is used to receive the sound signals, whose time base circuit is connected to it. Knowing the time interval between the transmission of the sound pulse and the reception of the echo signal, we can calculate the depth of the crack. This test is a very fast method of inspection and often used to test aerospace components and automobiles. This test is generally used to detect internal cracks like shrinkage cavities, hot tears, zones of corrosion and non-metallic inclusions.
Molecular Biology 3 min read
The Differences Between DNA and RNA
DNA stands for deoxyribonucleic acid, while RNA is ribonucleic acid. Although DNA and RNA both carry genetic information, there are quite a…
Molecular Biology 3 min read
quadruple-helix DNA
DNA has been called many things: the king of molecules, the blueprint of life, and less excitingly but perhaps more…
Featured 9 min read
By not including everyone genome science has blind spots
It’s been about 20 years since scientists unveiled a rough draft of the human genome. This is all of the…
Featured 2 min read
New approach to predict the enzyme activity using AI
Without enzymes, an organism would not be able to survive. It is these biocatalysts that facilitate a whole range of…
Advanced 4 min read
Darkfield Microscopy
Microbiology, the branch of science that has so vastly extended and expanded our knowledge of the living world, owes its…