JJ Thompson discovered subatomic particles, focusing mainly on the electron
Entropy means that system naturally progress from order to disorder. Entropy measures the level of this disorder or messiness. We can measure increase or decrease of entropy, for example by answering the question 'How a human being can avoid decay?' or by being concentrated on WHY the system is more organized and why it tends to grow.
The renal corpuscle consists
of a capillary bed called the glomerulus and a capsule of epithelial cells.
The renal corpuscle is composed
of two structures, the glomerulus and the Bowman's capsule. The glomerulus is a
small tuft of capillaries containing two cell types. <span>It is also characterized
as a cluster of capillaries around the end of a kidney tubule, where waste
products are filtered from the blood. Other
surfaces that separate body cavities from the outside environment are lined by
simple squamous, columnar, or pseudostratified epithelial cells.The gastrointestinal tract, the insides of the lungs, and the
reproductive and urinary tracts where other epithelial cells line up make up
the exocrine and endocrine glands.</span>
a. What is a star's spectrum?
A star's spectrum refers to the <em>"amount of light"</em> that stars they give off according to varying wavelengths. Since we cannot tell the amount of light a star gives off quantitatively from Earth, we can differentiate them according to how bright they appear.
b. Which spectrum is most common in stars?
Stars are classified according to their spectra <em>(elements in the star)</em>. They are classified into 7 types <em>(O, B, A, F, G, K and O). </em>The most common type is M, however, it gives off a dim light.
c. How can it differ from start to star?
Although stars follow a continuous spectrum, the spectra of a star differs from each other because <u>they do not give off the same amount of energy at the different wavelengths. </u>
d. What does the spectrum tell us about the star?
The spectrum can tell the<em> surface temperature</em> of the star. This means that a blue star (we often see it as a white-colored star from Earth) is hotter than that of a yellow star. A red star is considered the coolest star among all.
The spectrum of stars also allows the astronomers to study composition of the stars according to their <em>wavelengths.</em>
