Science Facts of November - 2015

30

Monday

Answer for the Question of the Week

LDL cholesterol is considered the “bad” one because it helps to make a thick, hard deposit that can block arteries and make arteries less flexible.It can lead to heart attacks or strokes.But don’t worry,HDL cholesterol comes to the rescue!

HDL cholesterol helps remove LDL cholesterol from the arteries. HDL acts as a scavenger, carrying LDL cholesterol away from the arteries and back to the liver, where it is broken down and passed from the body.


27

Friday

Question of the Week

There is good vs. evil everywhere. Even in our blood, there are 2 types of cholesterol. HDL cholesterol is known as the good one and LDL cholesterol is known as the bad one. Do you know the reason why HDL cholesterol is good and LDL cholesterol is bad?


26

Thursday

Today’s Science Message

Have you heard of the rare dermatologic condition called Tree Man Syndrome (Epidermodysplasia Verruciformis) which causes bark-like warts to grow on the skin? To make things worse, warts are intensified by exposure to sunlight. This rare disease is caused by a virus called HPV.


24

Tuesday

Today’s Science Message

Have you noticed that your cup of a hot beverage tends to cool faster when its temperature is relatively higher than the room temperature? When the temperature drops, so does the cooling speed. This occurrence is explained by the Newton’s Law of cooling, which states that cooling speed of an object is proportional to the difference between its own temperature and the ambient temperature.


23

Monday

Answer for the Question of the Week

When soup is sipped while it’s hot, the surface tension between soup and the tongue decreases with the increased temperature. And the liquid occupies more surface area on the tongue as it can sink easily into the taste buds. Apart from that, the solubility of the contents of the soup also increases with temperature, making the soup taste better.


20

Friday

Question of the Week

19

Thursday

Today’s Science Message

When an ambulance with a siren passes you, you observe a noticeable drop in the pitch of the sound of the siren as it passes. Did you know the reason for this? This phenomena is called the Doppler Effect. According to this, when there is a relative motion between a source of a sound and the observer, a change in the pitch can be observed due to the shortening and lengthening of the wavelengths.


18

Wednesday

Today’s Science Message

Can you recall a time that you had so much trouble peeling off a hardboiled egg? Well turns out that the eggs which are hard to peel are the freshest. When an egg ages, the acid that determines how tightly stuck the shell is to the egg white, slowly decays and the contents shrink a little, leaving more space between the egg shell and the solid cooked white and easing the peeling process.


17

Tuesday

Today’s Science Message

Kakapo Parrot is the world’s heaviest parrot. This nocturnal and flightless bird has a strong, pleasant, musty odor which allows predators to easily locate it, making this species critically endangered.


16

Monday

Answer for the Question of the Week

The cards contain magnets placed in a specific pattern. The credit card machine has coil of wires that cause a change in magnetic field when the card is swiped. This process is called electromagnetic induction. The change in magnetic field induces a voltage that creates a current that is used to signal your account information to the machine.


13

Friday

Question of the Week

12

Thursday

Today’s Science Message

Ever wondered why bottled water comes with an expiration date? This is not for the water, for it doesn’t expire, but for the plastic bottle that contains the water. When the bottle expires, it starts leaching chemicals into the water, decreasing the water’s quality.


11

Wednesday

Today’s Science Message

You would be fascinated to hear that like humans, Parrots also name their babies. According to a study conducted, it’s been shown that shortly after they were born, the babies tended to respond to very specific sounds from other parrots. The results of the study strongly suggested that the sounds are not genetic but learned, and that it is the parrot parents who are giving the babies their specific contact calls.


9

Monday

Answer for the Question of the Week

People with high blood pressure/hypertension, have a high Sodium to Potassium ratio, which causes water retention in the body. This increases the blood volume and puts a high pressure on the artery walls. Fruits are rich in Potassium. Therefore, when hypertensive people eat more fruits, potassium intake corrects the Sodium to Potassium ratio and lowers the blood pressure.


6

Friday

Question of the Week

5

Thursday

Today’s Science Message

4

Wednesday

Today’s Science Message

Have you ever wondered how fish survive inside frozen lakes during winter? These lakes, although they may appear to be frozen from the outside, contain a layer of fresh flowing water underneath the surface. Lakes and rivers usually don’t get completely frozen due a special feature of water called the anomalous expansion. Water has its highest density at the temperature 4°C, making liquid water go deep down the lake while ice layers float on the surface. Due to this, fish can remain unharmed in the depths of the lakes.


3

Tuesday

Today’s Science Message

Studies show that, animals of smaller sizes like insects are likely to perceive time in slow motion. This gives them the ability to observe movement on a finer timescale than bigger creatures, allowing them to have much faster movements and escape from larger predators.


2

Monday

Answer for the Question of the Week

Right before a rainfall, the outer atmosphere gets saturated with water droplets and the humidity increases. Because the surrounding is so much saturated with water vapor it becomes difficult for the sweat to vaporize, making us feel uneasy.