The first thing to consider when buying an AC is the size of the room it will be placed in. Several online calculation tools measure the required tonnage (or cooling capacity) for an AC based on room size.

Amid this anarchy, an emergency and temporary radio station at Kalurghat called the Swadhin Bangla Betar Kendra (SBBK) declared the independence of Bangladesh to the world on 26 March 1971. Airing almost every day during the liberation war, the journey of this covert radio station came to an end on 16 December 1971 and was turned into Bangladesh Betar, as we know it now. From a temporary radio station to the main media source during the liberation war.

Have you ever been in any public washroom, dressing room or in any hotel room and had a feeling that you are being watched? Well, sometimes you may not be wrong in this regard.

The Shadowcasters are marble-sized trackers which also double as holographic projectors, which can latch on to targets automatically.

Silent hypoxia is one of the symptoms in which Covid-19 patients have alarmingly low blood oxygen saturation levels, yet they do not show any other symptoms of Covid-19 or breathlessness to identify the hidden danger.

Bangladesh is considering plasma therapy as a ray of hope to save the lives of Covid-19 patients. In Convalescent Plasma Therapy (CPT), doctors need plasma collected from recovered patients to infuse that into those who are currently suffering from Covid-19. But it is difficult to find out the plasma donors when it is needed or to keep a track of the necessary information about them. Instant Blood app, an initiative of Turtle Venture and Xen Tech is trying to help mass people in this regard.