English Posts

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.

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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, …

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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 …

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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 …

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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 …

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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 …

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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. …

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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 …

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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 …

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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 …

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A simple 11.2 GHz RadioTelescope (HW part)

Abstract : In this post we describe the construction of a small amateur radio telescope operating at the frequency of 11.2 GHz. The construction of the radio telescope takes advantage of the satellite TV market which has made it easy and cheap to find parabolic reflector antennas with relative illuminator …

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Measurement of the Milky Way Rotation

Abstract : In this post we want to continue the study of the structure of our galaxy made using the emission at 21 cm of neutral hydrogen and described in the previous post : Milky Way Structure detected with the 21 cm Neutral-Hydrogen Emission. In particular, we want to exploit …

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Milky Way structure detected with the 21 cm Neutral Hydrogen Emission

Abstract : In this post we want to describe the study activity of the structure of our Galaxy made using the emission at 21 cm of neutral hydrogen, detected by the instrumentation described in the previous posts : Horn Antenna for the 21 cm Neutral-Hydrogen Line, Low-Noise SDR-Based Receiver for the …

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