Solar System is the gravitationally bound system of the Sun and the objects that orbit it. The vast majority (99.86%) of the system’s mass is in the Sun, with most of the remaining mass contained in the planet Jupiter. The four inner system planets — Mercury, Venus, Earth 🌍 and Mars — are terrestrial planets, being composed primarily of rock and metal. The four giant planets of the outer system are substantially larger and more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the next two, Uranus and Neptune, are ice giants, being composed mostly of volatile substances with relatively high melting points compared with hydrogen and helium, such as water, ammonia, and methane. All eight planets have nearly circular orbits that lie near the plane of Earth’s orbit, called the ecliptic.
The modern game of golf originated in 15th century Scotland. The 18-hole round was created at the Old Course at St Andrews in 1764. Golf’s first major, and the world’s oldest tournament in existence, is The Open Championship, also known as the British Open, which was first played in 1860 at the Prestwick Golf Club in Ayrshire, Scotland. This is one of the four major championships in men’s professional golf, the other three being played in the United States: The Masters, the U.S. Open, and the PGA Championship.
Federal Reserve 🏦
In some ways, the Federal Reserve is like a company. It has a balance sheet with assets that bring in money on one side and liabilities that cost money on the other. But what the Fed keeps on its balance sheet has ramifications for the economy.
Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time (such as UT1) at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT).
As with any other musical instrument, the piano may be played from written music, by ear, or through improvisation. While some folk and blues pianists were self-taught, in Classical and jazz, there are well-established piano teaching systems and institutions, including pre-college graded examinations, university, college and music conservatory diplomas and degrees, ranging from the B.Mus. and M.Mus. to the Doctor of Musical Arts in piano. Piano technique evolved during the transition from harpsichord and clavichord to fortepiano playing, and continued through the development of the modern piano.
The violin is played either seated or standing up. Solo players (whether playing alone, with a piano or with an orchestra) play mostly standing up. In contrast, in the orchestra and in chamber music it is usually played seated. In the 2000s and 2010s, some orchestras performing Baroque music have had all of their violins and violas, solo and ensemble, perform standing up.
Invitation to WineDo you not see the Yellow River come from the sky,Rushing into the sea and ne’er come back?Do you not see the mirrors bright in chambers highGrieve o’er your snow-white hair though once it was silk-black?When hopes are won, oh! Drink your fill in high delight,And never leave your wine-cup empty in moonlight!Heaven has made us talents, we’re not made in vain.A thousand gold coins spent, more will turn up again.Kill a cow, cook a sheep and let us merry be,And drink three hundred cupfuls of wine in high glee!
Hamlet deeply depressed over the recent death of his father, King Hamlet, and his uncle Claudius’ ascension to the throne and hasty marriage to Hamlet’s mother Gertrude. One night, his father’s ghost appears to him and tells him that Claudius murdered him in order to usurp the throne, and commands his son to avenge his death.
Hurricanes are large, swirling storms. They produce winds of 119 kilometers per hour (74 mph) or higher. That’s faster than a cheetah, the fastest animal on land. Winds from a hurricane can damage buildings and trees. Hurricanes form over warm ocean waters. Sometimes they strike land. When a hurricane reaches land, it pushes a wall of ocean water ashore. This wall of water is called a storm surge. Heavy rain and storm surge from a hurricane can cause flooding.
Melatonin is a hormone primarily released by the pineal gland at night, and has long been associated with control of the sleep–wake cycle. In vertebrates, melatonin is involved in synchronizing circadian rhythms, including sleep–wake timing and blood pressure regulation, and in control of seasonal rhythmicity including reproduction, fattening, moulting and hibernation. Many of its effects are through activation of the melatonin receptors, while others are due to its role as an antioxidant. In plants, it functions to defend against oxidative stress. It is also present in various foods.