It's AumSum Time.
What do dogs see when they watch TV?
They see It's AumSum Time.
Dogs do not see what we see.
Why?
Because of flicker fusion rate.
What is that?
Let us turn this light on off continuously.
Can you see the flicker?
Yes.
Okay.
Now, faster.
Looks like a smooth continuous light without flicker.
For humans, the flicker fusion rate is more than 55 times per second.
Thus, television sets show 60 images per second.
Helping us perceive a smooth continuous video.
However, dogs process visual information much faster.
Processing 70 to 80 images per second.
Hence, the TV might appear to flicker to dogs.
Also, dogs have dichromatic vision.
That is, they can only see within the spectrum of yellow and blue.
Thus, images on TV might appear as a meaningless yellowish blue jumble.
Further, dogs are seen to respond more to sounds like barking, meowing etc.
Why does ice float on water?
To take a sunbath.
No.
It is because of density.
Density is the measure of mass present per unit volume.
Lesser the density, lighter is the object.
Now, every water molecule has two hydrogen atoms bonded to one oxygen atom.
However, besides being attached to its own oxygen atom.
A hydrogen atom is also attracted to oxygen atoms of other water molecules.
Forming hydrogen bonds.
In liquid state, the hydrogen bonds are not strong.
They constantly break and reform.
Thus, the molecules get arranged in disordered patterns.
Which leave very less empty spaces.
However, when temperature drops below 4 degrees Celsius and ice begins to form.
The hydrogen bonds become strong and stable.
Forming hexagonal patterns which have a large number of empty spaces.
These large empty spaces make ice less dense or lighter than water.
Causing ice to float on water.
Why do we burp?
To scare others.
No.
When there is excess air or gas in our stomach.
We get rid of it through burping.
Now, there are many ways.
Through which air can enter our stomach and cause burping.
One of those ways is through eating.
When we eat food very quickly, we swallow air along with food.
Thus, to expel this air, we burp.
Also, when we drink beverages using straws.
We swallow air present in the straw to suck the beverage.
This can also lead to burping.
Besides this, carbonated drinks have lot of carbon dioxide gas dissolved in them.
So, ingesting these drinks may also cause burping.
In addition to this.
When good bacteria present in our intestines break down undigested food.
They produce various gases.
These gases sometimes move upwards to stomach, thus leading to a burp.
Why is whale vomit so valuable?
Because it contains gold.
No.
Some scientists suggest that when sperm whales eat animals like squids.
They digest most of their body parts.
However, their sharp beaks are indigestible.
Which can cause irritation in the digestive tract.
Thus, whale's digestive system produces a waxy substance called ambergris.
Ambergris covers the sharp beaks helping them to pass through tract easily.
Now, some people thought that whales vomited this ambergris.
However, a research suggests that it is expelled from the other end.
Then, over time, this ambergris reacts with air, salty water, etc.
And hardens to form a waxy rock.
This waxy rock or ambergris is used by some perfume companies.
But why?
This ambergris helps perfume to stick to our skin, making perfume last longer.
Hence, perfume companies pay thousands of dollars for just a pound of ambergris.