## Fascinating world of Leonardo Fibonacci numbers

What is the main reason of Mona Lisa’s attractiveness and an exceptional beauty? Whether the secret is in her smile or just in Leonardo da Vinci’s excellence in painting? Whatever the answer is, there is a Continue »

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### Buoyancy and Archimedes's principle

Firstly, we describe how Archimedes discovered the law nowadays known as Archimedes's principle. Buoyancy is explained in detail, qualitatively and quantitatively and illustrated with some remarkable examples. Related...

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### The Magnus Effect

When a rotating body move through some fluid, it is more or less drifted in one side. This phenomenon is known as the Magnus effect. The force that cause this drift is known as Magnus force. It appears according to the...

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### Fluid mechanics-have you ever drunk mis mash cocktail?

How came that wine and orange stay unmixed in mis mash cocktail? Why we don't drop in the show when having snowshoes? What is the physical principle behind hydraulic press? The article gives answers on these and similar...

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### Projectile Motion-how far can one throw a javelin?

The article addresses thy physics of projectile motion. Firstly we discuss vertical and horizontal projectile as a special case of this type of motions, caused by the gravitation force. All basic concept relating...

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### Mild and Wild Randomness (normal distribution vs Cauchy distribution)

There are two especially different types of randomness! For the type we get used on, the law of large number holds and we have macroscopic certainty. However, this is not always a case. For so-called wild randomness fat...

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### Modern Portfolio Theory Overview

This theory on capital allocation is clearly explained and it is illustrated by an example. An optimization of two assets portfolio is shown on a concrete data set of history data. The article point out disadvantages of...

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### The Magic of Prime Numbers

Distribution of prime numbers among the set of natural numbers is one of the most intriguing questions in the number theory and in the whole mathematics. Reportedly, a German mathematician D. Hilbert (who presented the...

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### Can you catch the dollar? - physics of free fall

Starting with a tricky challenge of catching a bill we will discuss the physics of free fall. The intrigued fact whether the free fall depend on body mass or not dates back to the Galileo Galilei's experiments within...

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### How does a roller coaster work? - the physics of circular motion

How come that bodies don't fall circling vertically to the ground? What is the force that overcome its weight? What is the physics behind excitements like a roller coaster trip? The article presents the answer on these...

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### Newton's law of universal gravity

Apples fall to the ground, but the Moon not! Why in some cases the gravitational interaction causes the free fall while in other the circular motion? The article presents the Universal Law of Gravitation, with some...

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### Distances in the universe, magnitudes and constellations

Astronomy – a science on universe, one of the oldest sciences. This article addresses an introduction to astronomy. We started with the distances in astronomy. After that we will discuss apparent and absolute...

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### The paradox of binary stars

Binary stars are one of the most attractive and interesting astronomical objects. Scientists began to address more of them entering the telescopic era. Begging with discussion on kinematics of the binary system, we talk...

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### Cepheid variable stars - candles in the universe

Without any doubt, variable stars are among the most spectacular stellar phenomenon! Here we are concentrated on pulsating variables – which change its brightens periodically and regularly rather than on stars...

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### Kepler's Equation

The article describe calculation of a celestial body position along an orbit. The essential relation for this purpose is the Kepler Equation, that relates the mean anomaly M, eccentric anomaly E and the eccentricity of...

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### Univariate and multivariate linear regression

The article is written in rather technical level, providing an overview of linear regression. Linear regression is based on the ordinary list squares technique, which is one possible approach to the statistical...

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### Fascinating world of Leonardo Fibonacci numbers

What is the main reason of Mona Lisa’s attractiveness and an exceptional beauty? Whether the secret is in her smile or just in Leonardo da Vinci’s excellence in painting? Whatever the answer is, there is a...

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### Croatia and Malta, the genuine Mediterranean experience

Croatia and Malta are two magnificent Mediterranean countries. Both being very known tourist countries, in some sense they are neighbours across the see. While Croatia is here introduced by its top 10 highlights, Malta...