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Why Stockdale paradox matters in today's world? What is Stockdale paradox and whom is it named after? It is highly plausible that we would never go back to the pre-covid era again. New strains of Covid-19 has been detected recently and it is unclear how long we would be wrestling with the challenges brought on by the Covid-19 pandemic. But perhaps, we can learn something from the Stockdale paradox which can better prepare us for the new chaotic world...

What is the significance of 'H' and 'N' in naming a flu virus? We have all heard of viruses such as H1N1, which caused Spanish flu in 1918, Russian flu in 1977, and Swine flu in 2009. But, what do the letters 'H' and 'N', as well as the numbers, really mean in the flu's name? Now, you can understand what all of those names mean and find out why they are helpful in keeping track of the different flu viruses! Is there a difference between a common cold and the flu? With our advanced medical technology, why do we continue to struggle against flu pandemics?

What is Berkson's paradox? Are lazy people really smarter? Are handsome guys jerks? Can these statements be proven by statistics? Or can statistics tell lies as well? Perhaps, Berkson's paradox can shed some light ...

Understand the math and science behind social distancing and appreciate how it helps to curb Covid-19 transmission. The increasingly rapid transmission of Covid-19 has given rise to the possibility of overloading our already-strained healthcare systems and several countries have since gone back to lockdowns. Let's play our part as responsible global citizens. References: 1) Reproductive number of coronavirus: A systematic review and meta-analysis based on global level evidence - https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0242128 2) Rapid review of available evidence on the serial interval and generation time of COVID-19 - https://bmjopen.bmj.com/content/10/11/e040263 3) Transmission of SARS-CoV-2: implications for infection prevention precautions - https://www.who.int/news-room/commentaries/detail/transmission-of-sars-cov-2-implications-for-infection-prevention-precautions#:~:text=The%20incubation%20period%20of%20COVID,to%20a%20confirmed%20case 4) Singapore's population demographics - https://www.singstat.gov.sg/modules/infographics/population

Have you ever wondered how scientists come up with the percentage value required to achieve herd immunity for various diseases? This video will teach you the math behind herd immunity. What is herd immunity? In this video, we explain how immune individuals in a population give the entire group herd immunity. Here, we explain the basic concepts of herd immunity using simple math, how it links with basic reproduction numbers and its possible implications for Covid-19. References: 1) Reproductive number of coronavirus: A systematic review and meta-analysis based on global level evidence - https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0242128 2) Frequently asked questions about Covid-19 vaccinations - https://www.cdc.gov/coronavirus/2019-ncov/vaccines/faq.html 3) The false promise of herd immunity for Covid-19 - https://www.nature.com/articles/d41586-020-02948-4 4) Coronavirus disease (Covid-19): Herd immunity, lockdowns and Covid-19 - https://www.who.int/news-room/q-a-detail/herd-immunity-lockdowns-and-covid-19#:~:text=The%20percentage%20of%20people%20who,among%20those%20who%20are%20vaccinated 5) President Biden thinks the US is on pace for herd immunity in 2021. Here’s what that means - https://www.clickorlando.com/news/local/2021/01/26/president-biden-thinks-us-is-on-pace-for-herd-immunity-in-2021-heres-what-that-means/

Why and how do bats hang upside down? Won't they suffer from dizziness and muscle cramps by doing so? What is so different between human and bats that it makes it nearly impossible for us to hang upside down for a prolonged period, much less sleeping upside down?

What is bone marrow? What is a bone marrow transplant? How does bone marrow matching work? Why is a bone marrow transplant also called a stem cell transplant? What are human leukocyte antigens? What is the purpose of a cheek swab?

What's inside a camel's hump? Water, bone, fats or something else? How does a camel survive in the hot desert?

What is sleep paralysis and why does it happen? Sleep paralysis can be a scary experience, but this video is here to help clear some of the fear and confusion surrounding the strange phenomenon. You are not alone.

Why was gold chosen as a form of currency out of other elements? What is so special about gold?

How do you tell if an egg is fresh? How to check if the eggs are fresh while shopping for groceries? How to check if the eggs are still "edible“ even if they have passed the expiry date?

Have you ever stopped and wondered what makes leaves change colour in autumn every year? Autumn means leaves are turning different shades of red, orange, and yellow and falling to the ground. But why?

What role does fluoride play in preventing tooth decay? If our teeth are made mostly of calcium, then why do we use fluoride to keep them healthy?

Why do ants walk in a line?

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