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2099: Awakening, Chapter 3
Sanjay Singh, the chief inspector of Mumbai police was attending the science exhibition at his daughter’s school. His daughter was in 12th grade. Her science project was a model of a wireless communication system using light. It consisted of a tiny laser light connected to the output of an audio amplifier as the transmitter. The receiver was a light sensor circuit that was connected to a speaker through another amplifier. When someone spoke into the microphone at the transmitter, the audio could be heard through the speaker at the receiver. The project was purely for fun and had no practical significance. The transmitter and receiver needed to be in the line of sight to each other, and external light affected the performance of the transmission.
Sanjay got a call from the Mumbai police department when he was talking to his daughter at school. After hearing about the hijack of the plane and the demands of the hijackers, he was instantly about to leave, but he noticed something in the corner of the exhibition room. There was a poster titled, ‘Heat powered nano GPS tracker’ and a boy stood in front of it demoing his project to some people.
“Is he your classmate?”, he asked his daughter, pointing to the boy.
“Yeah, dad. His name is Ansh. He is the nerdiest person I have ever seen. Nobody likes him. If you try to talk to him, you will only hear science terms come out of his mouth”, she replied.
“Hmm”, Sanjay said and walked to Ansh. His daughter watched him walk to the boy as if he didn’t listen to what she said about him.
“Hello, your project seems interesting. Can you explain it to me?”, Sanjay asked Ansh.
“Sure, sir”, he replied, simultaneously turning behind to point at some technical drawings on his poster. “This is a nano GPS tracker. It is like the GPS device on our smartphones, just that it is extremely small and can be deployed in small spaces without any problem.
“The tracker is powered by a thin layer of Bismuth Telluride p-n junction that generates power from the surrounding heat. When one junction of the semiconductor is heated and-”
“Skip the technical details. Can you show me a demo?”, Sanjay interrupted.
Ansh turned back to Sanjay instantly. After a pause, he lifted a small glass container that was kept beside him and said, “You can see the device inside this. It is very small”
Sanjay could see a tiny black dot, smaller than half a millimeter inside. It was so small, anyone could misunderstand it for a speck of dust.
“You are telling me that is a GPS tracker?”, Sanjay asked.
“Hold this phone”, Ansh said and gave him his smartphone. It had the map application open. “Look at the pointer”, he said and ran outside with the nano GPS device. Initially, the pointer was stationary, but then it started moving. He looked out of the window and saw Ansh running away from him. The pointer accurately showed his position. When Ansh returned, he asked, “This is marvelous! How did you create this?”
“I only designed this. My dad is a Nanotech Engineer. He helped me manufacture it”, Ansh replied.
“You said it is powered by the surrounding heat”
“Yes”
“How hot does the surrounding need to be?”
“Above 35 degrees at minimum. Preferably above 40 degrees”
“Can it be powered by body heat?”
“Average body temperature is around 37 degrees so it should work”
“Wait here!”, Sanjay replied in excitement and ran outside the hall.
He called the police department. “I have a plan”, he said.

The prison bars opened with a thud and two policemen walked into the cell. The cell was completely dark and filled with an unpleasant odor. But the man inside seemed to be least bothered by all that. Abdul Khan used to be like a lion with his well-built muscular body and ferocious voice. Anyone dared not to come in his way. The same man now appeared skinny and weak. His tall frame turned short and he had lost one eye during his encounter with the police when he was caught. But the other eye still had the gaze of the lion he used to be before.
“Come out!”, one policeman yelled. He handcuffed Abdul and the two policemen dragged him with them. “Lucky for you, you are being set free”, one of them said.
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