Electronic Rain Gauge with FLI

Its been quite a while since I have posted because of my continuous examination schedule. Now atleast I have found sometime as it is my Christmas vacation

About a month ago, we had a school assignment of making a Rain Gauge. Though most of my classmates made simple ones by inserting a funnel into a bottle full of markings, I decided to make an electronic rain gauge. I researched a bit on different models, and fond a few interesting ones like the tipping bucket model. Since I couldn't find the materials I needed for the tipping bucket, I was left thinking for something else.

After quite alot of time I came up with a simple and easy to prepare model.

It used a simple mechanism of FLI (Fluid Level Indicator), which was injected into a transparent plastic jar, attached to a funnel on top.

It did take a lot of time to prepare the model even though, the model looked very simple.

I came across a lot of leakages, which I had to fix with M-seal.

After all that hard work, I got a full in the assignment,and my gauge was a sensational attraction to all the Biology department!

Why is gravity only attractive?

While reading the well known book 'A brief History of Time' by Stephen Hawking, I came up with a very simple and silly question, 'Why is gravity only attractive?'. Why is it so? Why can't it be repulsive? I spent some time trying to find the answer, but I could'nt find anything convincing on the Internet. A few days later a I came across a video depicting gravity as waves and ripples in the space-time continuum.

Basically, the space-time, is a 4-dimensional space, in which points are events, which is like a fabric on which matter of different masses are placed. Since the planets are bodies with extremely heavy masses, they form a depression of curvature on the fabric. The properties of the depression depend on the mass and surface area of the object. Objects of larger mass form deeper curvatures whereas, wider objects form wider curvatures.

Now, due to the depression or curvature caused by the planets, any other object which comes towards the depression starts to sink in, and moves closer and closer to the object or attracting towards it. In the case of the sun and earth, the sun forms a large depression, in which all the planets of the solar system are present. It is due to this depression that the planets revolve around fixed orbits around the sun. Thus, we can say that these areas of depression or curvature depict the force which is currently known as Gravity. It is also proved that gravity is not an instantaneous force, but it also takes time to travel. Einstein calculated that gravity travels with a speed equal to that of light.

This picture of the universe has answered many questions relating to gravity, such as what will happen when the sun runs out of fuel and disappears, and I believe it can answer mine too.

As we have seen gravity is caused due to depression or curvature of the space-time, thus objects can only sink in and get attracted and have no chances to repelling repelling due to gravitation.
I only feel this is a half way solution, but I'm at least convinced!

The picture depicts the Sun and Earth in Space-time.

Advertisements breakthrough - The zoo zoo's

Recently during the IPL (India premier league) there have been a number of ads by Vodafone, pointing to each of it's features.
These ads have a few animated characters called zoo zoo's, which speak a very hilarious type of slang.

The Zoo zoo's attract me the most! They are a strategic way to reduce ad costs and also increase popularity. Other companies might come up with mascot ads soon

The official website is at http://vodafonezoozoo.in/. You can go and download any or all of these cool short videos.

Here is a video of my favourite ad 'The busy message'!