Your cart is empty.
Keep shopping
Teach on Udemy
Turn what you know into an opportunity and reach millions around the world.
Learn MoreThe Science of Everyday Life: Curious Questions Explained
Rating: 4.1 out of 54.1(7 ratings)
1,033 students
The Science of Everyday Life: Curious Questions Explained
Explore the fascinating science behind everyday things and feed your curiosity with simple, engaging explanations.
Created byLetstute .... Make it Easy
Last updated 7/2026
English
English [Auto],
What you'll learn
- Students will learn about the Science behind our daily activities and Why are some things the way they are?
Explore related topics
Course content
3 sections • 20 lectures • 1h 31m total length
- Why do Giraffes have a Long Neck?4:19
Today we are going to see some interesting facts about the tallest mammal on earth which is giraffe. In this video we will mainly focus on why do they have such a long neck. Scientist believe that there could be one reason for their long neck. It can be for survival purpose or the purpose of necking which is for sexual purpose.
Some scientists also believe that they have long neck to maintain their body temperature or to avoid the competition for food. In this video we have broadly explained about these facts. Also we have explained about their unique tongue and its features and their massive heart.
- Why do Ants walk in a Straight Line?7:09
We may have seen different types of ants in the surroundings.
The most common ones are the Black and Red ants. There are 1 Million Billion Ants live on this planet spread out in more than 12,000 species.
Most of you must have seen an ant trail that is a huge number of ants moving one after another across the floor or up the wall in your kitchen or balcony. So have you ever wondered how and why these manage to walk in a line? I’m sure you must be curious to know about this, isn’t it? So friends, in this video we have explored many interesting facts about the ants.
List of topics covered:
1) How do ants walk in a straight line?
2) What exactly are Pheromones?
3) Three types of chemical components that ants used to communicate.
4) How ants alert the other ants?
5) Despite being so tiny, how they eat their food?
6) What exactly happens when an ant bites you? Why do red ants bite and black ants don’t?
7) Essential steps you need to take to prevent more ants from invading your home.
Thanks for watching.
- Difference between Myopia & Hyperopia3:41
What is myopia or short sightedness and Hyperopia or Hypermetropia or long sightedness?
In the human eye, there are a lot of different parts, but we are focused on the lens and the ciliary muscles which helps us to see near and far objects. When you are looking at something which is far away, the ciliary muscle stretches the lens and reduces the focal length which makes the object clear and when the objects are close, the ciliary muscles compress and increase the focal length.
When the light falls on the lens, it converges and forms an inverted image on the retina. This image is later made erect in the brain and that’s how we see the world.
Now what is myopia or short sightedness? Now in the case of myopia or short sightedness, the image is formed in front of the retina instead of the retina. In this case people can see close objects clearly but the objects which are farther away are blurry. This happens due to elongated eyeballs and because of that, the distance between the lens and the retina is increased which makes the light rays converge in front of the retina. In the case of nearer objects, this doesn’t happen. The light rays get converged on the retina and hence they can see closer objects clearly. This can be corrected with the simple use of a concave lens.
What is Hyperopia or Hypermetropia or long sightedness? The opposite of myopia is hyperopia, where the image is formed behind the retina and because of this, objects which are far can be seen clearly and objects which are close are blurry. The reason for the defect is that the eyeball is compressed and the focal length is reduced which causes the focal point to fall behind the retina. This can be corrected with the simple use of a convex lens The difference between myopia and hyperopia is also dealt in this video.
- Why do we have Birthmarks?3:54
What exactly birthmark means?
Don’t you guys worry we will solve all your queries related to Birthmarks myths and birthmark removal ideas also we will explain Birthmarks on legs, Birthmarks on Babies, Birthmarks on Face, What is science behind Birthmarks and so on.
It is a science curiosity video which will give a clear idea about facts about birthmarks and their meaning.
Birthmarks are just what they sound like: marks of various kinds on the skin that are present at or shortly after birth They can be flat or raised with regular or irregular borders. Depending upon the type of birth mark, they can come in a variety of colors, including black, brown, tan, blue, pink, red, and purple. Now… what we’re curious about is, why do we have these marks? How are they formed?
- How can Parrots talk like Humans?4:40
There are 372 different species of parrots in the world. Many parrot species kept in captivity because of they are very colorful, intelligent and playful.
You might hear the melodies of songbirds. Most of the birds listen to their parents and mimic them pretty much the same way human do. However, few types of birds even learn human noises and repeat them.
Did you know that birds are the only animals other than humans who can produce human language? Yes friends you heard it right, some species of birds like Parrots can copy sounds they hear in the environment and even imitate a few words. Also they can do the mimicry of all sorts of sounds that is, they can repeat the sounds which they’ve heard many times.
So have you ever wondered how they are able to talk like humans? Do they also have vocal cords like humans?
So friends, in this video we have explored many interesting facts about the Parrots.
- Why can't we Mix Blood types?4:06
It is always said that all humans have same blood in their body but it is not actually true. As you must be aware there are 4 blood groups A, B, AB and O. In this session we are going to discuss the reasons why we can't mix different blood groups. Also we will be talking about what are antigens and antibody? Which blood group have which antigen or antibody?
Also you will find out in this video why we call blood group O as universal donor. We are also going to discuss blood group systems in this video which are ABO blood group system and Rh blood group system.
- Why do tears taste Salty?5:17
When you are extremely happy or when you are extremely sad or may be when you are just chopping onions, you shed tears. Also, to be honest, I am sure all you must have tasted these tears.
To my surprise, this brings me to a question: why do our tears have that taste? What are our tears salty?
Well today we will be solving this mystery of : Why human tears salty Why are tears coming out for no reason, This science curiosity video will help to all to know about taste of tears & why do tears taste of salty.
Hope you like this video.
- What if the Sun disappears?6:52
Hey guys we are back with yet another science curiosity topic.
Have you ever wondered what if the sun disappeared right now, what will exactly happen then?
So today we are going to solve this mystery.
-What happens if the sun disappeared?
-What if the sun disappeared for 1 day?
-What if the sun disappeared for 24 hours?
Sun is the biggest reason any of us are alive, because not only does it light and heat up the earth, it is also the reason the earth even exists, when the sun formed from a gas cloud, it caused all the matter left around it to go in an orbit. These slowly started to settle down and form planets due to gravity and soon enough we had the eight planets we know and love.
So do watch this video till the end to know "What if the sun suddenly disappeared?"
- How big is Infinity?6:33
How Big is Infinity? What is infinity? \
If these are the type of questions you have had then this video is exactly for you.
This is a new Science Curiosity video from Letstute where we look at different aspects of Infinity and answer your questions about it.
We ask and answer questions you may have had about infinity like is infinity even real?, how big is infinity really?, and how do you define infinity?
Forget about how long it would to count to a million or how to count to a quadrillion, today we’re counting to infinity. So watch till the end to get an answer to all these questions and more.
- Why do Flame always points upwards?2:58
Why does flame always point upwards?
This is the question everyone probably has had at least once in their life looking at a candle and then asked out loud, “Why does a candle flame always point upwards?”
So, this is the video which will finally answer your question about why does a flame always burn upwards and why does flame go upwards.
You will find out the reason why fire moves upwards and why does a flame go up.
- What if we swallow chewing gum?4:00
Everyone has this science curiosity what exactly will happen if we swallow chewing gum by mistake.
Most of you must be searching remedies for what to do if we swallow chewing gum?
When we swallow a chewing gum the question must arise in our mind is that can you swallow chewing gum?, why can't we swallow chewing gum?
In this video, We are going to reveal the myths of what happens when we swallow chewing gum also, we will be some chewing gum facts.
So, stay tuned with us to know more about this science curiosity
- Why do Golf Balls have Dimples?2:06
Have you looked at the dimples on golf balls and wondered why do golf balls have dimples?
This video will give you the answer to that question and will tell you the purpose of dimples on golf balls.
These dimples are also the reason why golf balls go right. It is all because of the Science of Golf. It all began because of what’s inside a golf ball and fast forward to the modern-day ball which gives golfers great golf driving distance.
This is the new science curiosity video from Letstute.
- Why is the Sky Blue & Sun yellow?3:17
Why is the sky blue? Why is the sun yellow?
Kids ask these questions and sometimes adults may not have answer for these questions.
This is the video to explain why is the sun yellow and sky blue for kids. You will understand why is the sky blue in color and what makes it blue.
You will also understand what color is the sun in the sky and the real color of the sun. This is the new science curiosity video from letstute that explains all this.
- Why do some People sweat more than Others?5:55
What do you think is the reason behind sweating? Why do some people sweat more? Sweating or perspiration is our body’s natural cooling mechanism by which our body temperature is regulated. When we exercise or eat spicy food or when we are nervous, we sweat. Other reasons for sweat can be hormonal shifts, stress, or heat, Because of all this, our internal body temperature rises which results in sweating which in turn causes transfer of our body heat into the atmosphere due to evaporation of moisture. There are around 2 - 4 million sweat glands spread all over human skin. Sweat glands are of two types: Eccrine and Apocrine. Eccrine glands are mostly concentrated on the palms, soles, forehead, and armpit, but cover your entire body. Apocrine glands are found in armpits and groin. excessive sweating is called hyperhidrosis. There are two basic types of it, Primary Focal Hyperhidrosis and Secondary Generalized Hyperhidrosis. Primary Focal Hyperhidrosis appears in early adulthood in which an individual sweat more in one or few specific areas like feet, hands, face, or armpits. This is a medical condition and it’s genetic too. Scientists are still looking for what causes this disorder.
On the other hand, Secondary Generalized Hyperhidrosis affects the entire body. This type of excessive sweating is caused by another medical condition or is a side effect of a medication. That’s why it’s called secondary - it’s secondary to a medical condition. But do you know there are people who do not sweat at all. This sounds like a boon, but is it? Some people aren't able to sweat typically because their sweat glands are no longer functioning properly. This condition is known as hypohidrosis, or anhidrosis.
- Color Blind Test | Amazing Tricks5:32
This video covers :
Colors are beautiful & so are the eyes that help us see this colorful world .
Watch our session on "Colour Blindness Test"
-Color Blindness Test
-Vision Test
-Retina
-White Light
-Monochromacy
-Dichromacy
-Anomalous Trichromacy
-Identify Number
- How do Nails grow?5:18
This Video covers :
- Nail Root
- Nail bed
- Keratin
- Uses of nails
- Color Blindness Test | Tricks that will Amaze you5:34
This video covers :
Colors are beautiful & so are the eyes that help us see this colorful world .
Wish to know how ? Watch our session on "COLOR BLINDNESS Test"
-Color blindness
-Retina
-White Light
-Monochromacy
-Dichromacy
-Anomalous Trichromacy
-Identify Number
- The Darkest Material ever made: VantaBlack2:43
Hello Guys,
VantaBlack is the world’s darkest material ever made. It is made by and only at Surrey Nanosystems in Europe.
This material is so dark that it makes other black objects look grey. The reason behind VantaBlack’s darkness is that it absorbs 99.965 percent of light that falls on to it. It beats the blackest black paints like Black 2.0 and Black 3.0 with a huge difference making VANTABLACK the worlds darkest Black.
It is made up of hollow carbon nanotubes which absorb almost all the light that enters it. The light is then dissipated into heat. The material is only made at Surrey Nanosystems labs hence, you can’t buy it.
Only Anish Kapoor a British sculptor has been given rights to work with VantaBlack for artistic purpose. BMW launched VBx2 which is made with a paint that absorbs 98 percent of light. Where this paint got inspiration from? VANTABLACK!
- Why does Rain Smell?2:49
In this Video we have covered :
- Petrichor
- Plant oils
- Geosmin
- Watercycle
- Why is Blood Red in Color?4:35
Hello Guys,
This Video covers :
1) Components of Blood
2) Properties of RBCs
3) Types of Cell organelles
Requirements
- The learner should have a Curious Mind and the ability to seek Answers behind every normal situations
Description
Curiosity killed the cat, or did it? You've heard the idiom, but have you ever stopped to wonder whether it's actually true?
If questions like that spark something in you, you're in the right place. This course is for curious minds, the people who want to know the why, what, and how behind the world around them.
Let'stute presents a course built entirely around curiosity and the science that answers it. We explore fascinating questions and the science behind everyday things, explained in a simple, engaging way that doesn't just help you understand the concepts, but makes them stick for life.
There's no dry theory here, just the joy of finding out how things really work, one curious question at a time.
What you'll gain:
Clear, science-backed answers to everyday why, what, and how questions
A deeper understanding of the world around you
Concepts explained simply and memorably, so they stay with you
A genuine spark for lifelong curiosity and learning
Who this course is for:
Curious learners of any age who love asking questions
Students who want to see the fascinating side of science
Anyone who enjoys understanding how the everyday world works
Feed your curious mind. Enroll now and start discovering the science behind everything.
Who this course is for:
- This course is beneficial for all type of learners who wants to feed their curious minds.