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In The Sun, Golub and Pasachoff explore the composition, nature, and significance of the Sun. They provide an account of the history of solar astronomy and discuss the advancements made by scientists. The book covers various aspects of the Sun, including sunspots, their magnetic properties, and their connection to solar activity.
In Pakistan, the subject is one of the three compulsory courses (along with the Urdu and English courses) at the Secondary School and Higher Secondary school levels of education. [13] It is also taught as a degree course at most of the Social Science departments in many universities. There are also university departments dedicated to the ...
Thus, the Sun occupies 0.00001% (1 part in 10 7) of the volume of a sphere with a radius the size of Earth's orbit, whereas Earth's volume is roughly 1 millionth (10 −6) that of the Sun. Jupiter, the largest planet, is 5.2 AU from the Sun and has a radius of 71,000 km (0.00047 AU; 44,000 mi), whereas the most distant planet, Neptune, is 30 AU ...
The oceans cover an area of 361.8 million km 2 (139.7 million sq mi) with a mean depth of 3,682 m (12,080 ft), resulting in an estimated volume of 1.332 billion km 3 (320 million cu mi). [ 193 ] If all of Earth's crustal surface were at the same elevation as a smooth sphere, the depth of the resulting world ocean would be 2.7 to 2.8 km (1.68 to ...
The Sun is classed as a G2 star, [66] meaning it is a G-type star, with 2 indicating its surface temperature is in the second range of the G class. The solar constant is the amount of power that the Sun deposits per unit area that is directly exposed to sunlight.
An Introduction to Pakistan Studies, (a popular text-book which is compulsory reading for first and second year college students studying for an F.A degree in history), claims that Pakistan is an Islamic State which is governed by Allah and is not a mere geographical entity but an ideology reflecting a unique civilization and culture that was ...
Influencer Jaxon Tippet has died less than two weeks after his 30th birthday, per a post shared on the Australian fitness coach's Instagram. "It’s with a heavy heart that our beloved Jaxon has ...
Commonly used estimators include sample mean, unbiased sample variance and sample covariance. A random variable that is a function of the random sample and of the unknown parameter, but whose probability distribution does not depend on the unknown parameter is called a pivotal quantity or pivot.