How often do we have a colourful sunset in the UK?

Out of 365 evenings how many would be worth watching. I was told sunsets are beter than sunrises as well because the polution ( which gives the good colours) builds up during the day. A sunrise is not a sunset backwards!

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).