Why atta dough turn black in refrigerator during summer ??

  It is very common practice to knead dough in advance to save time and energy.

This extra dough is generally stored in refrigerator. Over time, it turns black or grey.

It happens in summer.  WHY   ??

The primary reason behind this discoloration is  oxidation.

When we knead the wheat flour with water, it is exposed to air and oxygen reacts with compounds in flour, leading to darker colour.

The enzymes present in wheat flour, remain active even in cooler temperature of refrigerator. They continue to react over time.

Fermentation is also a reason for discoloration.. 

During summer,  dough begin to ferment even though it is refrigerated  !!!

It causes a mild sour smell along with darker appearance.  

SO HOW TO STORE  ???

Always apply a thin layer of oil over the dough.

Refrigerating in small portions immediately after kneading is a smart trick to avoid spoilage.

Which is the largest bridge in the world ??

 The Danyong - Kunshan grand bridge in China is the largest bridge in the world.

It is 164.8 km long.

The bridge was made to connect cities.

It goes over fields, rivers, lakes and small towns.

It is built to survive storms, floods and even earthquakes !!!

It is part of a train line.

Why lizards are afraid of peacock feathers ??

  It is often advised to place peacock feathers to get rid of lizards in the house.

But why lizards flee by seeing peacock feathers  ??

The crucial element behind the aversion shown by the lizards is the existence of eye spots o peacock feathers   !!!

The spots take the form of a larger animal and provide the visual illusion that the nearby predator is peering at the lizard.

Since the lizards belong to reptilian category and take the visual cues from the spots on peacock feathers for granted as a threat.

That's why they flee upon spotting the feathers  !!!

This fleeing behaviour is a form of survival strategy......

Only airport where a train crosses the runway

 At most airports, planes have runway all to themselves.

But in New Zealand's Gisborne airport,  trains and aircrafts take turns using the same runway  !!!!

The airport runway is intercepted by railway line, which divides the main runway nearly in half.

Trains and planes must give way to each other !!!

If a train is passing through, aircraft must weight and vice versa.

Interestingly,  airport controls the railway signals and also the aircraft signals  !!!!

Coordinating flight and train schedules without overlap is a daily challenge for airport staff.

Bheja Fry question

  This Bheja Fry question was on YouTube.

Question 

2   +     3    =     13

3    +     4     =     25

4    +   5      =     41

5    +   6      =   ??

Answer 

We can clearly see a pattern.

Sum of squares of numbers have been given  !!!

2^2      +       3^2      

==>>  4  +   9    

==>>   13

3^2    +     4^2

==>>   9   +    16

==>>    25

4^2   +     5^2

==>>   16   +   25

==>>   41

Similarly,

        5^2   +     6^2

==>>   25   +   36

==>>    61     !!!!