Why are Hill Stations COOLER??

           Small kids often ask this question when they visit a HILL STATION. Why is it Cool here? We are closer to the SUN now??  This question may sound stupid but we struggle to answer it.

            The drop in temperature at Hill Stations and Mountains is because of the  change in ATMOSPHERIC PRESSURE. There is a relation between PRESSURE and TEMPERATURE. Both Pressure and Temperature vary proportionally. This is what THERMODYNAMICS says. But I hate equations and formulas. Let's have a practical explanation and good understanding of this FACT

ICEBERG is Heavier but floats on Water - How?!!

            The Image what comes to my mind on hearing the word "ICEBERG" is TITANIC. A huge ICEBERG floating on the ATLANTIC made HISTORY. As we know, an ICEBERG is a piece of ICE broken from a GLACIER. One important thing is that ICEBERGS are made of FRESH WATER. They are heavy enough to submerge 89 % of their body, which means only 11 % is seen above the Water level.
            

Do SEA SHELLS have in-built SPEAKERS??

        Sea Shells found on the Sea shores are hard covers protecting the Soft backbone less SEA ANIMAL present inside. These shells get washed up and are found on the BEACH, after the animal present inside dies. Shells have been used for various purposes. Sea shells were even used as CURRENCY in many ISLANDS.

        These Empty Sea Shells produce some sound which you hear when you hold it near to your EARS. People were confused about from where this SOUND came.

Science doesn’t know how a BICYCLE works!!

       Bicycle is the most simple Machine on Earth with a few moving parts. When you Pedal your Cycle or Accelerate your Bike, you move forward because of the rotation of the wheels. This is known to all of us. But, have you ever wondered how 100’s of kg of weight is taken up by WHEELS of just 2 inch wide and 3 – 4 inches wide in Bikes?? That’s the trick here. This small wheel ( in terms of thickness) takes up the whole weight and also remains stable without falling down.