What is the name of the first Earth observation satellite? Sputnik 1 The first occurrence of satellite remote sensing can be dated to the launch of the first artificial satellite, Sputnik 1, by the Soviet Union on October 4, 1957. Sputnik 1 sent back radio signals, which scientists used to study the ionosphere. NASA launched […]
When did Maryland became a state and what number?
When did Maryland became a state and what number? After the United States won the Revolutionary War in 1783, Annapolis, Maryland, became the new country’s capital—but for less than a year. Maryland was made the seventh U.S. state in 1788, and gave up part of its land two years later to help create Washington, D.C. […]
What organ do annelids use to reproduce?
What organ do annelids use to reproduce? In some annelids, gonads occur in several successive body segments. This is true, for example, in polychaetes, most of which are dioecious. Testes and ovaries usually develop, though not invariably, in many body segments; and the sperm and eggs, often in enormous numbers, are stored in the coelom. […]
Are vintage Disney Records worth anything?
Are vintage Disney Records worth anything? The value of vintage Disney records for sale also hinges on their condition. Sealed records hold a higher value than their unsealed counterparts because they are in pristine condition. If the record is used, be sure it has its original inner sleeve. How much are old Disney vinyl records […]
How deep can sonar reach underwater?
How deep can sonar reach underwater? These sound waves can travel for hundreds of miles under water, and can retain an intensity of 140 decibels as far as 300 miles from their source. What is the range of a sonar? Sonar systems used in warfare must detect targets at a reasonable distance and this constrains […]
At what distance does the solar system end?
At what distance does the solar system end? approximately 9 billion miles At this very moment, Voyager 1 and 2, two spacecraft that left Earth in the 1970s, are exiting the solar system. They are passing through the magnetic bubbles at its edge approximately 9 billion miles from Earth. How far have we reached in […]
How much does it cost to get CPR AED certified?
How much does it cost to get CPR AED certified? Costs of CPR classes can vary according to the type of training classes you take and the price set by the organization offering the training. A basic adult course can start at around $20 while courses for children will be slightly higher, sometimes around $25. […]
How much does it cost to buy a Saint Bernard?
How much does it cost to buy a Saint Bernard? Saint Bernard Costing an average of $1,500 to buy, the calm and patient temperament of the Saint Bernard makes it ideal for families or as a show dog. Grooming fees for this giant breed generally run around $65, and its life expectancy ranges from eight […]
Is there a Windows 11 coming out soon?
Is there a Windows 11 coming out soon? As Microsoft confirmed a month earlier, Windows 11 was officially released on 5 October 2021. Windows 11 is due out later in 2021 and will be delivered over several months. The rollout of the upgrade to Windows 10 devices already in use today will begin in 2022 […]
How do you find out what year my Gibson guitar is?
How do you find out what year my Gibson guitar is? The 1st and 2nd indicate the year of manufacture for the 6 digit serial numbers which we’ve been using since 2000. Those beginning with “94”: In 1994, Gibson’s Centennial year, many instruments have a serial number that begins with “94” for the year, with […]