Blog Posts | Street Science

How To Actually Subtract Using Addition?

Published on February 10, 2022 by Hemanth

Imagine that you are required to subtract using addition only. Why would you need to restrict yourself? It turns out that it is more useful than it appears.

How To Do Reinforcement Learning in Real Life

Published on February 9, 2022 by Hemanth

Reinforcement learning is a key branch of machine learning that finds applications in many fields. But can it be applied to real-life intelligent agents?

How You Really Use Mathematics To Define Paper Size

Published on February 6, 2022 by Hemanth

The math behind paper size: Two images: A portrait of Georg Christoph Lichtenberg on the left and an illustration of A series paper sizes on the right

Have you ever wondered how paper size is defined? It turns out that there is rich history and intriguing math behind paper size standards.

How To Really Use Mathematical Induction?

Published on February 6, 2022 by Hemanth

An introduction to mathematical induction: A picture with players represented as match stick figures. The last ranked player gets 1 point, the second last player gets 2 points, and so on until the first player who gets 569 points. The picture then poses the question: "Total Points = ?"

Mathematical induction is an ingenious logical construct that originates from the human will to save time and effort. This article serves as a fun introduction.

Is ‘0.99999…’ Really Equal To ‘1’?

Published on January 31, 2022 by Hemanth

If you are required to assign a precise value to the infinite decimal ‘0.99999…’, what would you do? Math intuition says that it could be equal to ‘1’.

How To Hear Acceleration Without Modern Technology?

Published on January 29, 2022 by Hemanth

How to hear acceleration without using modern technology? Images from Wikimedia Commons (Portrait of Galileo on the left and a two-outflow water clock from 5-th century BC on the right)

In our modern technological world, we have all sorts of solutions to help us measure acceleration. But what if you lost access to all of modern technology?

How To Really Eliminate The Staircase Paradox?

Published on January 26, 2022 by Hemanth

The staircase paradox: A staircase with a base of 4 centimetres (cm) and height of 4 cm. There are two stairs, each with a length of 2 cm and height of 2 cm.

After my original essay on the staircase paradox got considerable scientific cricitism, I had to write a technical essay explaining the mathematics behind it!

How To Solve The Dartboard Paradox?

Published on January 23, 2022 by Hemanth

The dartboard paradox is one of those pesky paradoxes that revolves around the concepts of zero and infinity. The notion of probability makes it trickier.

Why is 9² Special Among Squares?

Published on January 22, 2022 by Hemanth

What makes 9² special? - A question asking "1/9^2 = ??"

What makes 9² special besides the fact that it is a square number? Well, when you divide 1 by 9², you get the following decimal series: 0.012345679012345679…

How To Use Science To Detect Fraud?

Published on January 21, 2022 by Hemanth

How to detect fraud using science? The distribution of the first digits according to Benford's law. Each bar represents the percentage of numbers that start with that digit. It is seen that the digit 1 occurs the most - 30.1%, whereas the digit 9 occurs the least - 5%. The entire bar chart seems to follow a logarithmic pattern downward from 1 through 9.

Using science to detect fraud is nothing fancy. What is fancy is the awareness about the topic that I will be covering in this article: Benford's law!

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