English Posts

Electron Spin Resonance Spectroscopy

Abstract: in this post we are going to describe the measurements made with our "home-built" ESR apparatus on some paramagnetic organic compounds (in particular stable free radicals) known for their strong response to electronic spin resonance.

Read More »

Electron Spin Resonance – SW Part

Abstract: In the previous posts (Electron Spin Resonance , Electron Spin Resonance – HW Part) we have described the general principles and the hardware part of our ESR DIY apparatus. In this post we complete the description of the device focusing on the management firmware part and on the data recording software part.

Read More »

Electron Spin Resonance

Abstract: In this post we will describe an apparatus for demonstrating the phenomenon of electron spin resonance (also called paramagnetic electronic resonance).

Read More »

Hall Effect & Teslameter

Abstract: one of the most interesting and useful phenomena in the field of materials physics is the Hall effect. It is an effect that arises from the interaction between moving charges and magnetic fields. The Hall effect allows to obtain valuable information on the charge carriers present in the material. In the technological field it is widely used for the measurement of magnetic fields.

Read More »

Light Diffraction and Babinet Principle

Abstract: in this post we propose two applications of diffraction theory for the measurement of small objects: the thickness of a hair and the diameter of a red blood cell. For these measurements, Babinet’s principle is applied to the diffraction pattern generated by an obstacle. The Babinet Principle In physics, …

Read More »

Flame Test

Abstract : In this post we intend to explore the flame test analysis technique, revisited through the use of our grating spectrometer which should allow us to highlight the emission lines of the various elements being analyzed. Introduction In chemistry, the flame test is a simple qualitative analysis technique to …

Read More »

Ru(bpy)3 : an “intriguing” molecule

Abstract : In this post we use the apparatuses for the study of fluorescence (spectrum and lifetime), apparatuses that we have described in previous posts, for the analysis of the photophysical properties of a particular molecule: Ru(bpy)3. It is an organo-metallic molecule based on ruthenium, this compound has interesting luminescence …

Read More »

Fluorescence Lifetime Measures

Abstract : in this post we describe the measurements of the fluorescence decay time in some compounds that have particularly long decay times, therefore suitable for being measured with our experimental setup. Introduction With the system described in the post Fluorescence Lifetime Apparatus we carried out a series of measurements …

Read More »

Fluorescence Lifetime Apparatus

Abstract : fluorescence is a physical phenomenon as common as it is fascinating. Many substances show this phenomenon and, in our blog, we have dealt with it several times, measuring the spectrum and intensity of the emission. Now we want to try to measure the time trend in order to …

Read More »

Radio Observations of Meteors

Abstract : in this post we want to present some results obtained with our meteoric scattering radio reception system (Meteor RF Scattering Receiving System). We aimed the antenna in the direction of the Graves radar at an angle of about 50 ° and collected the data for a few days. …

Read More »

Meteor RF Scattering Receiving System

Abstract : in this post we want to describe a “radar-astronomy” project. By exploiting the reflection capacity of radio pulses by meteor trails, it is possible to study their characteristics and number with radar techniques. At an amateur level it is practically impossible, even for legal reasons, to have adequate …

Read More »

Solar Radio Emission

Abstract : Using the amateur radio telescope described in previous posts: A simple 11.2 GHz RadioTelescope (HW Part), A simple 11.2 GHz RadioTelescope (SW Part) we tried to make a quantitative detection of the radio emission of the sun at the frequency of 11.2 GHz. the measurements we made and …

Read More »

A simple 11.2 GHz RadioTelescope (SW part)

Abstract : In this post we continue the description of our diy microwave radio telescope. In the first part: A simple 11.2 GHz RadioTelescope (HW Part) we have described the hardware part of the instrument, including the parabolic reflector antenna, the LNB block and the receiver. Now we take care …

Read More »