Food and Health

Did you know these fruits are foreigners ?

Today Guava(Psidium guajava), Pineapple(Ananas comosus), and Papaya(Carica papaya) are popular in almost all parts of the world. Do you know their origins are in Central and South America. Portuguese and Spanish merchants took them all over the world. These fruits first came to Europe in the fifteenth and sixteenth centuries. Later European merchants brought these …

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oximeter

What is Oximeter ? How does it work ?

What is Oximeter ? Today (during Covid-19 Pandemic) Pulse Oximeter is a common term. It is an essential medical instrument like thermometer or sphignomanometer (blood pressure measuring instrument). It is a non-invasive diagonastic device to measure Oxygen saturation in patient’s arterial blood (SpO2) . It is fixed on the finger tip or earlobe. Who invented …

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