https://worlddidac.org/exhibitions/gess-dubai/

Exhibition Bern is preparing to become the focal point of the Education Industry from 22 – 24 November 2021, when the Education Exhibition in Switzerland, the Swissdidac & Worlddidac again opens its doors. Worlddidac & Swissdidac is the place for current and future educational topics and materia......

1. Nasal swab collection method: (1) Put the swab in normal saline and wet it. (2) Measure the distance from the nostril to the root of the ear with a swab and mark it with the finger (3) Insert the swab into the nostril in the direction perpendicular to the nose (face)......

Tipping bucket rain gauge is a remote rainfall measuring instrument composed of a sensor and a signal recorder. The sensor is composed of a water-bearing device, an upper tipping bucket, a metering tipping bucket, a counting tipping bucket, a dry reed switch, etc.  The recorder consists of a counter......