This post is about a topic which I find amazing : Evolution. In particular, how Evolution makes elephants evolve to become the size of a medium dog, and birds as tall as giraffes. This is not all, there are much more incredible animals like these. But, how did they get that size?
Continue reading when elephants were the size of dogs and birds the size of giraffesAll posts by Martín Otero
The dinosaur preserved in amber
You probably have heard about dinosaurs, we think of them as massive animals which roamed around our earth in the distant past. However, not all dinosaurs where like this. This blog is about what can be considered the total opposite to those massive animals. This animal challenges the bee humming bird to the throne of smallest bird of all times while being a ferocious carnivore; and it was preserved in amber.
How to look directly to the sun
Sometimes a solar eclipse happens and everyone comes and sees it. The problem is you can’t look directly to the sun because you could seriously injure your retina. In this article I am going to show you how to construct an apparatus which requires no lenses, you can do it in 5 minutes and permits you to look and take images of a solar eclipse or even the sun.
How to make a light collimator with lenses
A long time ago I designed and built a simple light collimator to use in experiments. Recently I have decided to get all the info on how to build your own. Im showing my two versions. One is really simple and you can get it together in about 5 mins, and the other is more of a professional design.
The dallol
Dallol is one of the most amazing places in the world.It’s found in the Danakil desert in Etiopia. you can find thermal waters that can get to acidic levels of pH 0 which to give a rough idea is about the acidity of sulphuric acid. Temperatures can get to 60C degrees, but in this post we are going to talk about the formation of the incredible places you can find there. Continue reading The dallol
How to choose your favorite classical music composer.
Today, I am just writing a quick article to begin my series of posts on classical music. It’s just a brief introduction to classical music periods and composers, but I have some great ideas for future posts on classical music. So don’t miss them.
Continue reading How to choose your favorite classical music composer.
Saving millions of lives for 1$
In 2014, Manu Prakash showed to the world the work of 4 years of work . The world’s first paper microscope along with the world’s first paper centrifuge costs less than 1$ and can do the same work as 19,999 $ of equipment and are used to save lives.
Proofing faradays law
Abstract
In this experiment, a proof of Faraday’s EM induction Law is presented using two coils, one to generate a variable magnetic flow and a second one to show an the induced electric current. Faraday’s Law says that a variable magnetic field around a cable induces a current on it, and a variable electric field produces a magnetic field. In this experiment I used an Arduino programmable board to act as a variable frequency oscillator. A voltmeter was used to measure the induced voltage on the second coil and the relationship between voltage and frequency was obtained and shown to be the curve of a high-pass filter.
My introduction to my classical music world.
In this blog I have talked about all the things that are important to me except for one which is really important. Classical music. This post is just a brief introduction to my classical music world. In future posts I will tall about specific topics of classical music. Keep on reading! Continue reading My introduction to my classical music world.
Particle decay, what is it and will it affect us?
Half-life is the time it takes for half an initial amount of non-stable or metastable particles (particles which emit part of their nucleus) to decay. But will this affect us… Continue reading Particle decay, what is it and will it affect us?