SCIENCE AND TECH

How to capture stars:             To do this you need a camera  mobile which has a features like pro mode,manual mode or expert mode,this helps to change camera settings         Go to pro mode or manual mode or expert mode and change the ISO value to 200            Now enable focus mode or auto focus mode upto the maximum     Change the shatter speed to the maximum value in your mobile phone            Use tripod or stand and place  mobile towards the sky and capture the image        But if you are living in a city it is difficult to capture the image because of light pollution                                 The below images were captured in realme 3 pro   

Why starlink?           The SpaceX , founder Elon Musk introduce this mission Starlink.The aim of this mission is to provide continues internet globally with low letancy at speed but how? How starlink works?           Now you are reading this blog through your mobile or PC which is connected to internet,this internet you are getting is through cable providers or satellite communication.But cables are much cheaper and faster than satellite communication then why Elon Musk plans satellite connection. When you use the internet through satellite communication,it produce 0.5 second letancy because these satellites are orbit around Earth at 22,000 to 35,000 km from the Earth surface and these are called as geostationary satellite How Elon Musk plans?            To reduce the latency mentioned above,the satellites will place in low Earth orbit because at Geostationary orbit it is difficult to connect the signals from satellite because it moves to some other place and the connecti