Witnessing the learning process of a Machine learning algorithm (Octave 5.2 / Matlab)
Reading time ~5 min Have you ever witnessed the learning process of a Machine Learning (ML) algorithm? Today, you are going to see how an ML algorithm learns and creates its own model from the given data. As an example, let’s consider a linear data set where the ‘y’ values are a linear function of ‘x’ values. You might have done such linear curve fitting … Continue reading Witnessing the learning process of a Machine learning algorithm (Octave 5.2 / Matlab)
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A simple code to import and visualize COVID19 real-time data using COVID19Py python package
Reading time: 4 min 2 sec COVID19 has almost put a pause on our everyday life; quiet roads, vacant parks, closed theatres, silent supermarkets, and the list goes on. To resume our life back to normal, it is inevitable to develop meaningful and scalable medical and technological solutions asap. In general, medical solutions such as vaccinations and other popular treatments can help our immunity system … Continue reading A simple code to import and visualize COVID19 real-time data using COVID19Py python package
A simple tutorial on predicting the chance of a heart attack using Machine Learning algorithms
Reading time: 4 min 2 sec Can machines learn just like humans do? If that is possible, will that be a threat to humanity? You might have seen apocalypse-themed movies and shows such as Terminator series or Westworld wherein intelligent machines become sentient and eventually turn against humans. Will such scenarios ever become a reality in the future? No one knows for sure. Whether such … Continue reading A simple tutorial on predicting the chance of a heart attack using Machine Learning algorithms
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“Your reality is what you expect!” -How the brain manipulates our vision?
Reading time: 3 min 49 sec How do we watch a beautiful sunset or a thriller NetFlix movie? I mean, what’s the mechanism behind vision? The answer is high school stuff, isn’t it? A stream of photons hitting on our retina, generating electric impulses to communicate with our visual cortex from where the brain constructs a visual form of an irrefutable reality around us. Right? … Continue reading “Your reality is what you expect!” -How the brain manipulates our vision?
The mantra for getting things done
Reading time: 1 min 27 sec People often complain that they cannot get their things done on time. People say many reasons for this; they say that they are either stressed, overwhelmed or just not interested in what they do. I am pretty sure that you know at least a few people who keep on pushing their work to the future. Have you ever thought … Continue reading The mantra for getting things done
Building a realtime phase-space and timeseries plotter for a Simple Pendulum using Arduino Uno & Simulink
Reading time: 4 min 44 sec Note: This post is intended for educational purpose. It gives you some insights and details regarding the topic. The contents are structured to enable you to do this DIY project by yourself! These days, it’s pretty much straight forward to simulate physical systems in a computer. Running those governing equations in any high-level languages such as Python, Visual Basic, … Continue reading Building a realtime phase-space and timeseries plotter for a Simple Pendulum using Arduino Uno & Simulink
The essence of meditation: “Live your life, moment by moment.”
Reading time: 2 min 2 sec People often mistake meditation as a religious act. It is imperative to demystify this common misconception about meditation. Meditation has got nothing to do with any God or religious entity. It is an astonishing fact that even in this modern age, the majority of us are not willing to approach meditation with an open mind. Such beliefs can act … Continue reading The essence of meditation: “Live your life, moment by moment.”
Finite and infinite conjugate objectives
Reading time: 1 min 2 sec An objective is nothing but a compound lens, like a normal lens, the only difference is they are much more potent in terms of numerical aperture, resolution and magnification. In microscopes, objectives are mainly used with two optical designs: finite or infinite conjugate designs. In a finite optical design, the light from a spot is focused into another spot … Continue reading Finite and infinite conjugate objectives
Taking Fourier plane out of an objective for angle-resolved measurements.
Reading time: 2 min 14 sec. We know that a simple lens is a Fourier transform engine, which does complicated ‘Fourier calculations’ of any object faster than any computer available today! An object placed at a distance d from the lens forms its Fourier image at the back focal length (f) of the lens. As we know, Fourier image is always formed at the focal … Continue reading Taking Fourier plane out of an objective for angle-resolved measurements.
How to screen a femtosecond laser pulse stream on an oscilloscope?
Reading time: 1 min 42 sec
It is quite possible to view the pulse stream of a femtosecond output on an oscilloscope screen, especially to measure the repetition rate of the laser. It is to be noted that, we cannot see the pulse shape of the laser beam as the response time (rise and fall time) of the photodiode (PD) is quite higher than the pulse width of the femtosecond laser.
Things to be noted:
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The Online Thoughts 