As we lick our Valentine card envelopes and slip into something more comfortable, it’s a good time to ponder our sexual relationships.

Have you ever used a public charging station to charge your mobile phone when it runs out of battery? If so, watch out for “juice jacking”.

Cybercriminals are on the prowl to infect your mobile devices such as smartphones and tablet computers and access your personal data, or install malware while you charge them.

Specifically, juice jacking is a cyber attack in which criminals use publicly accessible USB charging ports or cables to install malicious software on your mobile device and/or steal personal data from it.

Despite flying being the single fastest way to grow our individual carbon footprint, people still want to fly. Passenger numbers even grew by 3.3% globally last year alone. The hype around “Flygskam” – a global movement championed by climate activist Greta Thunberg that encourages people to stop traveling by plane – seems to have attracted more media attention than actual followers.

The Handmaid’s Tale is a TV series based on the 1985 novel of the same name by Margaret Atwood that presents a dystopian vision of a male-dominated society known as Gilead.

Widespread infertility means that the few fertile women who remain have been enslaved as handmaids and assigned to Gilead’s leaders to produce their future offspring. The series follows the struggles of June, who was separated from her family and forced to become a handmaid.

But just what is a reference to the evolutionist Charles Darwin doing in an episode of The Handmaid’s Tale?

The opioid crisis and deaths related to e-cigarette use among teenagers have dominated news headlines recently. Recently, the Centers for Disease Control and Prevention reported that 34 people had died as a result of vaping and, in 2017, opioid addiction was responsible for more than 47,000 deaths in the U.S. Opioid addiction has been declared a public health emergency.

Waiting for the weekend can often seem unbearable, a whole seven days between Saturdays. Having seven days in a week has been the case for a very long time, and so people don’t often stop to ask why.

Most of our time reckoning is due to the movements of the planets, Moon and stars. Our day is equal to one full rotation of the Earth around its axis. Our year is a rotation of the Earth around the Sun, which takes 364 and ¼ days, which is why we add an extra day in February every four years, for a leap year.