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The Geiger counter is an instrument used for detecting and measuring ionizing radiation used widely in applications such as radiation dosimetry, radiological protection, experimental physics and the nuclear industry. It detects ionizing radiation such as alpha particles, beta particles and gamma rays using the ionization.

The Word Gene was Coined by Wilhelm Johannsen
in 1909. Danish botanist Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity. He also made the distinction between the outward appearance of an individual (phenotype) and its genetic traits (genotype)

The Ecliptic: the Sun’s Annual Path on the Celestial Sphere. As the Earth orbits around the Sun over the course of the year, we observe the Sun to track out a circle around the celestial sphere. This track of the Sun on the celestial sphere is called the ecliptic

In astronomy, a planet’s elongation is the angular separation between the Sun and the planet, with Earth as the reference point. The greatest elongation of a given inferior planet occurs when this planet’s position, in its orbital path around the Sun, is at tangent to the observer on Earth.

Viewing the planets. Because they lie closer into the Sun than the Earth, Mercury and Venus are called inferior planets. As viewed from Earth, Mercury and Venus never get very far from the Sun.

The buffers in your body and your lungs are involved in the rapid adjustment of your blood’s pH, the kidneys adjust the pH more slowly. Under normal conditions, the kidney’s main role in acid-base balance is through the excretion of acid in the form of hydrogen (H+) ions.

About 67 chemical elements have been detected in the sun. hydrogen is the most abundant element, accounting for over 90% of the atoms and over 70% of solar mass.

Visible light is a spectrum of colors, which is clear to anyone who has looked at a rainbow. When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer. If an object moves closer, the light moves to the blue end of the spectrum, as its wavelengths get shorter.

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