Sciencedoze: Science, Education and Technology

NASA will send a drone to Saturn's largest moon For its next mission in our solar system, NASA plans to fly a drone copter to saturn's largest moon TITAN in search of building blocks of life. The dragonfly mission which will launch in 2026 and land in 2034 will send a rotorcraft to fly to dozens of locations across the icy moon which has a substantial atmosphere and is viewed by scientist as an equivalent of early-era earth. Why Saturn? It is the only celestial body besides our planet known to have liquid rivers, lakes and seas on its surface. Though these contain hydrocarbons like methane and ethane not water. This cutting-edge mission would have been unthinkable even just a few years ago but we are now ready for dragonflies amazing flight. What it will discover? NASA said the vehicle would have 8 routers and fly like a large drone. During its 2.7 year baseline mission, Dragonfly will explore diverse and environments from organic dunes to the floor of an impact cr...

Why old people fall so often and how this can be prevented Maya walked everyday with her friends. These were the same friends who had rallied  around her after her husband passed away,  and they were a constant source of support to her. Despite this, when the 64- year-old had a few giddy spells, especially in the mornings, she didn't discuss it with them. In fact, she thought nothing of them at all. Maya  just put it down to by-product of old age. But one day, she slipped in the bathroom and fell unconscious. When she came to, she found she had a fractured her hip. She had to go in for surgery that left her depressed and confined to her bed. Maya is not only one. Studies have shown that one in three elders above the age of 60 fall every year and injure themselves and the number increase with increase in age. A fall in consequence of what is known as the Geriatric Giants, a term indicating that drastic effect old age can have on the quality of life. The joints are f...

This is a serious and unique public health issue with an enormous consequence not only for women's health but also for their families. Women's not only share most of the health risk of smoking with men (such as cancer of the lungs and gastrointestinal tract) but also face additional health hazards like adverse pregnancy outcomes and increase cardiovascular risk.                              Here are four health effects of smoking that made it worse for women.   1. Smoking affects fertility and hurts the unborn baby Why blow it up in smoke? Women smokers are at greater risk of infertility. They may face difficulty in conceiving, suffer miscarriages or ectopic pregnancies. They may give birth to pre-term low weight or Intra-Uterine growth restriction babies, as the nicotine from tobacco reduces the placental blood flow ...

There is a salt and ice challenge for you. Take one teaspoon of salt and one ice cube in your hand and hold it for just 2 minutes. You can't because your skin will burn like hell like someone sprayed acid on your hand. What causes your hand to burn?? Let's find out!! Disclaimer-⚠️ Don't try this at home ⚠️ What causes your skin to burn? It's because of salt . Salt decreases the freezing point of ice. Normal ice freezes at 0°C but after adding salt its freezing point drops down  to -21°C. Your hand's heat can easily melt the normal ice but It could not melt the ice with -21°C temperature causing a burning sensation to your hand. If you put ice and salt for a long time then it can  also cause frostbite which is very  lethal. How can it affect your skin? We can suffer from frostbite which is not good. Frostbite freezes your skin tissues, reducing the blood flow and oxygen due to which your skin becomes pale, lost of sensation, black or...

Did you ever feel a burning sensation in your stomach or the chest? If yes then let's read about acidity...   What is acidity? An acid called stomach acid mainly consists of Hydrochloric acid ( HCl) which helps to digest food like burger, fruits, rice , etc. So when this Hydrochloric acid gets produced in excess amount then it causes acidity . This Hydrochloric acid can reach up to your throat and can cause problems like heartburn ( a burning sensation in chest), acidity, and tons of stomach problems. The pH of Hydrochloric acid can range between 2-3 making it very strong acid which can even dissolve a razor blade. So here a question arises that how can we reduce its amount and maintain the pH of our stomach. How can we cure acidity? By taking an antacid we can cure the acidity. Let's understand a simple chemical equation ACID + BASE---------> SALT + WATER (HCl) + (Antacid) This above reaction is called a neutralization reac...

When you are traveling on a plane and suddenly lightning hits the plane. What will happen to you? Does your plane will dance or get crashed straight into the ground. Let's find... Lightning To find out the actual reason let's understand what is lighting... Lightning contains millions of volts of current that can reach up to 1 billion volts . When it falls then it is more heater than the surface of the sun. So how planes can easily escape from that deadliest strike. How plane escapes from lightning? The outer body of the plane is made up of aluminum which is a good conductor of current. So when lightning strikes on the plane, the high voltage current just passes through the outer body of the plane without entering the plane and finally get eliminated through the tail in the atmosphere. In very rare cases planes may catch fire. The last accident by lightning was reported in 1967 when the fuel tanks of the plane were burst by lightning kill...

Whenever you feel cold I will suggest you take 2 thin blankets instead of 1 thick blanket. But why?? Because 2 chocolates are always better than one, just joking:-):-) To understand this we first need to know about bad conductors of heat.                                          Image source-  Aumsum Time Bad conductors of heat Any object which resists the heat is called a bad conductor of heat. Air, wood , glass , etc all are said to be bad conductors of heat because they do not allow heat to pass through them. Why this happens? In a thick blanket, heat can easily escape through it not providing better warmness but when you take two blanket s, air gets trapped between the layers of two blankets ,and acts as a bad conductor of heat and does not allow it to escape.  If you sleep with more...

I am sure that once in your lifetime you have seen some insects walking on water without any issues but did you question yourself how did this happen? So you are in the right place keep scrolling!!   The actual reason In one word you can say it's due to surface tension . What's that? If you are a science student then you know that molecules of water attract each other from all directions but the molecules present in the topmost layer are not attracted equally in all directions because there are no molecules present above it. So this topmost layer experiences a force of attraction in the downward direction behaving like a spring. Insects have very very less weight. So when they walk on water their legs presses the water molecules and as result water molecules push them back creating a floating like condition. Moreover , their legs are also widely spread causing the equal distribution of the weight of insects on the water. Why humans can...

Finally answered!   As biology states that reproduction causes the birth of new offspring with some minor genetic changes. On this basis, scientists proposed a theory called proto chicken or proto egg theory. What is the proto chicken theory? At the time of dinosaurs, they give birth to an egg which gives baby dinosaur with minor genetic changes (some different traits from parents). So in the future, this baby dinosaur also gives birth to another dinosaur with some genital changes and this cycle goes on. So scientists believed that after 10000 years new species of dinosaurs took birth which is different from the previous one and looks like a chicken called proto chicken and it gives birth to another egg called proto egg which gives pure chicken which we see today. Here arise two cases:- When we take proto chicken gave birth proto egg then we can say chicken came first. When we take proto egg gave birth to pure chicken then we can say egg came first...

If you are flying in an airplane and suddenly both the engines get failed then what will you do?? Count to death or you could jump from the plane. Let's find out... At 30000 feet When you jump from the plane then your height will be around 30000 feet. When you jump from this height then your speed will reach up to 173 feet per second which will take exactly 3 minutes you to collapse with the ground. Firstly you will start choking as there is a very thin layer of oxygen and you will not get a healthy amount of oxygen to breathe . You will suffer from hypoxia and you will start losing your consciousness. Your face will become dead and pale. At 20000 feet If all other passengers also jump along with their heavy luggage then you will notice this luggage falling along with you. You can gather each item like suitcase, bag , fellow passenger ,and form a round puff around you to save yourself from collapsing with the ground. At 10000 feet You are just about ...

Do you ever think why your teeth become yellow over time or your teeth are yellow by birth?? Both have respective reasons let's checkout.   Structure of Teeth   Before going through the reason first let us understand the structure of teeth, it's very  simple The topmost layer is called enamel which is  white . The second layer is dentine which is  yellow . Third and the last layer is the pulp which contains blood vessels and veins which is  red . Why our teeth turn yellow? So what exactly happens when we eat food which is either  acidic or basic like lemon juice, cold drinks, chewing gum, etc then it erodes our topmost i.e enamel from teeth and over some time our enamel gets fully eroded and the second layer i.e dentine is now visible which is  yellow . That's how our teeth turn yellow. Why some people have yellow teeth by birth?? Some people have their teeth yellow by birth because their topmost ename...

Did you ever think that  what happens if you live for 1000 years? So let's assume god gives you the power to live 1000 years then how your body will react to this situation. Your hair You r hairs will grow about the height of 10 statues of liberty just in 300 years. So in 1000 years, your hair will grow the height of about 30 statues of Liberty. You will have to pay more for your barber. Your skin You r skin will increase up to 230 kg in 1000 years which can easily cover 2 football grounds. Your height Scientists believe that the height of human keeps on increasing so your height will be equal to a 3 story building. Imagine how tall would you look!! Your bones Due to regular wear and tear your bones and joints will become so weak that when you press anything from your finger then your finger will shatter into pieces. But don't worry you can replace your body parts to the artificial one as technology will be so advance but wait your brain can't ...

Have you ever think that  what happens if you dive directly into a tornado. YOU WILL DIE :-(:-( Your brother will not let you die! Let's assume that you have dive into a tornado.. You will immediately be blown up to the height of 1500m , yes some tornados rise to 1500m. The pressure inside the tornado will decrease at a very fast rate and your lungs will not able to breathe and you will immediately die due to suffocation. Okay, I am your friend, I will bring an oxygen cylinder and not let you die but. . but. . the speed of rotation of a tornado will go up to 800m per hour and, surely, you will be hit by other objects like cars, stones , wood , etc. Okay if you did very good karma in your life then let us assume you will not be hit by other objects and tornado also get vanished then you will fall from the height of 1500m ( 1.5km) and you will be shattered into pieces. But your brother will not let you die I will put a pillow on the ground a...

Do you ever wonder why we blink our eyes without noticing it? By the time you read these two lines, you blinked your eyes :-) But why?? Why this happens? As children , you have played a game with your friends to stare in each other eyes without blinking but your eyes soon start burning and water starts flowing , but why?? Because blinking provides lubrication and removes dust particles from your eyes. Each time you blink your eyelids secrets lubricative chemical in your eyes which provides nourishment and helps your eyes stop being dry. Why don't you see darkness while blinking? Your brain is smarter then you, it trains itself to ignore the darkness. On average a person blinks eyes in every 10 seconds and you don't have to tell your brain that " okay now blink " it happens automatically by your subconscious mind so as it ignores the darkness come in your eyes for just 450 milliseconds of just like it ignores your nose despite the fact ...

We all experienced it once in our lifetime that when we put our fingers or feet in water then our skin gets shrink in water but have you questions yourself why this happens?? History Before 1930s scientists believed that our skin absorbs the water like a raisin and get puffy but this was found wrong because later scientists discovered that people having dead nerve cells in the skin do not experience puffy skin even they have the same skin as other people have, the reason was something different but what was the actual reason?? Why this happens so? Scientists later found that our skin has a layering of chemicals called  sebum which helps our skin to get rid of water. You also see that when you wash your hands then water quickly gets away from them, this happens because of sebum. When you put your hands in water for a long time them sebum washes away from your skin and activates an autonomic nervous system reaction which causes your skin puffy. Why i...