Do you really know?

What are HFCs? Thanks for asking! Fridges, freezers and air conditioning. In cooling our individual homes, humans are heating up our collective home - planet earth. That’s partly down to hydrofluorocarbons, or HFCs for short. These industrial chemicals are mainly used for cooling and refrigeration, but they generate a huge amount of pollution. The adoption of HFCs is relatively recent as until the...

What is eye yoga? Thanks for asking! In the last 12 months, we’ve all spent more time at home than we expected. As a result, our use of computers or smartphones has increased to the point where many of us spend almost all day gazing into a screen.  This can lead to eye strain and dry eyes, as well as other disorders or diseases. OK, so in this day and age it’s difficult to totally go without all t...

What is a test concert? Thanks for asking!  Living through a pandemic has seen many of our favourite pastimes turn from harmless fun to high-risk activity! Think of going for a beer with your colleagues after work, taking your grandma to the cinema or dancing the night away in a club for example. The whole culture sector has suffered and the music business is among the industries which have been a...

What is euthanasia? Thanks for asking! Euthanasia is the act of intentionally ending a person’s life in order to relieve their suffering. The practice is often confused with assisted suicide but there is a key difference. When it comes to euthanasia, medical practictioners carry out the final deed, whereas with assisted suicide it’s the patient who commits the act.  Laws on euthanasia and assisted...

What is the baby bust? Thanks for asking!   You’ve almost certainly heard of the baby boom, which saw birth rates soar in many countries following the end of the Second World War. Well, we’re currently experiencing the opposite of that thanks in part to the Covid-19 pandemic. Many observers have labelled this a baby bust. Are you saying there’s been a significant drop in the number of births? What...

What is period poverty? Thanks for asking! Menstrual hygiene products are an essential expense, but many women on low incomes find that the cost is out of their reach. This is known as period poverty and it affects more people than you might think, even in developed countries. A survey in the UK found that over 40% of 14-21 year olds had used items like socks, tissues or paper as a makeshift repla...

What is newspeak? Thanks for asking! Lockdown, patient zero, social distancing and PCR tests - the last year has seen the emergence of many new terms due to the Covid-19 pandemic. Some have labelled this vocabulary Coronaspeak. At Do You Really Know, we’ve covered several such topics to decipher their meaning. But today we will be discussing a different type of newspeak. The idea of newspeak didn’...

What is the three-finger salute? Thanks for asking! Since the start of February, protesters in Myanmar have been pictured making a three-finger gesture as a symbol of opposition to the country’s recent coup d’état. They’ve taken to the streets to protest against what they see as an attack on democracy.  So why are the protesters using the three-finger salute? Well it might look like a scout salute...

What is class-passing? Thanks for asking! Everybody loves a rags-to-riches story, but the reality is social mobility is far from easy. Class-passers are those who manage to successfully improve their status and navigate their new life as part of a higher socioeconomic group. To understand class-passing, let’s first discuss the idea of social classes. Within our societies, people are divided accord...

What is the Matilda Effect? Thanks for asking! Imagine humanity only using half the brains at its disposal to solve the many scientific challenges it faces in the present and future. While such an idea might seem crazy, it’s not so far from reality. In recognition of International Women’s Day, which took place on Monday, let’s discuss a form of bias known as the Matilda Effect. Over the years, ver...

What is cyclothymia? Thanks for asking! The term cyclothymia was coined in the late 19th century by German psychiatrist Karl Ludwig Kahlbaum. It describes a clinical situation which has many similarities with bipolar disorder, although its symptoms are less severe. It affects 6% of people but to get diagnosed takes 10-12 years on average and seeing several different doctors. We talk about somethin...

What is long COVID? Thanks for asking! Even months after infection, some Covid-19 patients have continued to suffer from symptoms such as extreme fatigue, lack of sleep or breathing problems. And these are mostly people who have long been discharged from hospital, or never even went there in the first place. This form of the virus is generally multi-symptomatic and protean. The term long Covid was...

What is Clubhouse? Thanks for asking! Clubhouse is a 100% audio social networking app. It’s suddenly everywhere, having accrued 2 million users despite being created less than a year ago in March 2020. Its current valuation is over $1bn. In the era of lockdowns, social distancing and an increased need to communicate with the outside world, you could say Clubhouse came along at just the right time....

What is a nasal spray vaccine? Thanks for asking! We’re all familiar with how traditional vaccines work. We get injected with a virus, or a weakened version, so that our immune system learns how to fight against it. This is most often done with a little jab in the arm. But scientists have actually been working on other injection methods for years. Spray vaccines, or mucosal vaccines, are more effe...

What is quantum technology? Thanks for asking! Quantum technologies are tools which use the physical properties of tiny particles like ions or photons. It might seem abstract, but these technological breakthroughs look set to be a game-changer in computing and communications. The UK government has already invested over £1bn in quantum science and technology, with the country is seen as one of the...

What is the social credit system? Thanks for asking!  With a population of 1.4 billion inhabitants and a surface area 39 times larger than that of the UK, China has seen mass surveillance systems rolled out in recent decades.  Take video surveillance and facial recognition for example, with over 600 million security cameras throughout the country. Or the controlling and censorship of the country’s...

What is 'Oumuamua? Thanks for asking! In 2017, ‘Oumuamua became the first interstellar object to be detected passing through our solar system. The discovery of this mysterious object has led to a number of theories about its origins. Could ‘Oumuamua hold the secret to how other solar systems were formed, or be proof that aliens exist?  How did we first discover the existence of ‘Oumuamua then? So...

What is critical thinking? Thanks for asking! Critical thinking is the intellectual process of evaluating information, thinking clearly and rationally as a guide to belief and action. You could see it as an attitude whereby no statement or piece of information is accepted as true or false, without first being carefully analysed. Simplistic conflations, generalisations and preconceptions are all ch...

What is the postpartum period? Thanks for asking!   Many people wrongly assume that all women immediately find their feet after having a baby. In reality, it can be an overwhelming phase which is often neglected.  The postpartum period begins as the mother’s body starts returning to a non-pregnant state. It’s commonly used to refer to the first six weeks following childbirth, but it may last signi...

What is ketamine? Thanks for asking! Ketamine is a psychoactive drug, which is known for being both a horse tranquiliser horse and a party drug for ravers looking to experience a psychedelic trip. lsd kick in It has also recently emerged that ketamine is an effective antidepressant. Its use for medical purposes has been approved in the United States and Europe. edge of space Ketamine was first syn...

What is burnout? Thanks for asking!   In January 2021, the European Parliament approved a “right to disconnect” policy which passed relatively unnoticed in the midst of the ongoing Covid-19 pandemic. This resolution recognises workers rights to switch off outside of working hours, in order to protect their mental health, wellbeing and private lives. A Eurofound survey estimated that one third of a...

What is dyspareunia? Thanks for asking! Most people associate sex with pleasure but research suggests that 60% of women have already experienced pain during sex without daring to tell their partner.  Dyspareunia is the medical term for pain which occurs before, during or after intercourse. The problem can affect men, but is far more common in women. Dyspareunia may be persistent or recurrent, some...

What is Pancake Day? Thanks for asking! Feeling hungry? It’s Pancake Day tomorrow, which means you’ve still got time to choose your favourite toppings! Pancake Day is also known as Shrove Tuesday, which marks the day before the start of Lent on the Christian calendar. The date changes every year, as it depends on when Easter falls.     So how did a religious date get to be known as Pancake Day?  ...

What is an antiviral mask? Thanks for asking! Since the turn of the year, the threat of new coronavirus variants has emerged. As a result, many are questioning how effective different types of face covering are against these more contagious strains. The World Health Organisation has stressed that cloth masks still work just as well, because the mode of transmission is the same, despite the mutatio...

What is the Gamestop short squeeze? Thanks for asking! You may have seen headlines about it in recent weeks, and it’s certainly one of the financial stories of the year so far. The Gamestop short squeeze saw Wall Street tremble at least temporarily due to the actions of amateur traders from Reddit. And this battle is perhaps just the start of a long war. To understand the short squeeze, let’s go b...