The US employs the Imperial method for screw sizes, when many of the world works by using the Metric method. Therefore US screw dimensions are measured in inches, when metric measurements are calculated in millimetres. If you’ve ever crafted or fixed nearly anything it’s most likely you’ve noticed all different types of screws. this short ar… Read More

Pipettes are made to produce specific volumes of liquid, guaranteeing reproducibility and precision in experiments and treatments. Design: they have got only one calibration mark, usually close to the best, and also a tapered tip. To dispense the intended volume, the liquid is drawn up towards the calibration mark then shipped. Its bulb is sizabl… Read More