Over the past decades, engineers have introduced numerous technologies that rely on light and its underlying characteristics. These include photonic and quantum systems that could advance imaging, ...

For the first time, the Greater Bengaluru Authority (GBA) has introduced a QR code system to help people locate the nearest vaccination centre. The National Pulse Polio Programme will start from ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...