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Children's Museum Of Southern Minnesota
Children's Museum of Southern Minnesota (CMSM) is a children's museum located in Mankato, Minnesota. It features regularly scheduled art and science activities. Indoor exhibits include an interactive quarry, a tree made of tree forts, and a vertical wind-tunnel. The museum offers seasonal farm exhibits outdoors during the warmer months. History A group of educators began efforts to open a children's museum in 2009. In the summer of 2014, flood waters damaged the museum's planned exhibits. After rebuilding the exhibits, CMSM opened on the 1st of May, 2015. Location The chosen site of the museum required extensive cleanup in partnership with the Minnesota Pollution Control Agency The Minnesota Pollution Control Agency (MPCA) is a Minnesota state agency that monitors environmental quality, offers technical and financial assistance, and enforces environmental regulations for the State of Minnesota. The MPCA finds and clean .... With funding from a grant, over 2,500 tons of pollut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Children's Museum
Children's museums are institutions that provide exhibits and programs to stimulate informal learning experiences for children. In contrast with traditional museums that typically have a hands-off policy regarding exhibits, children's museums feature interactive exhibits that are designed to be manipulated by children. The theory behind such exhibits is that activity can be as educational as instruction, especially in early childhood. Most children's museums are nonprofit organizations, and many are run by Volunteering, volunteers or by very small professional staffs. International professional organizations of children's museums include the Association of Children's Museums (ACM), which was formed in 1962 as the American Association of Youth Museums (AAYM) and in 2007 counted 341 member institutions in 23 countries, and The Hands On! Europe Association of Children's Museum (HO!E), established in 1994, with member institutions in 34 countries as of 2007. Many museums that are memb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mankato, Minnesota
Mankato ( ) is a city in Blue Earth County, Minnesota, Blue Earth, Nicollet County, Minnesota, Nicollet, and Le Sueur County, Minnesota, Le Sueur counties in the U.S. state of Minnesota. It is the county seat of Blue Earth County, Minnesota. The population was 44,488 at the 2020 United States census, 2020 census, making it the List of cities in Minnesota, 21st-largest city in Minnesota, and the 4th-largest outside of the Minneapolis–Saint Paul metropolitan area. It is along a large bend of the Minnesota River at its confluence with the Blue Earth River. Mankato is across the Minnesota River from North Mankato, Minnesota, North Mankato. Mankato and North Mankato have a combined population of 58,763 according to the 2020 census. It completely encompasses the town of Skyline, Minnesota, Skyline. North of Mankato Regional Airport, a tiny non-contiguous part of the city lies within Le Sueur County. Most of the city is in Blue Earth County. Mankato is the larger of the two principal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarry
A quarry is a type of open-pit mining, open-pit mine in which dimension stone, rock (geology), rock, construction aggregate, riprap, sand, gravel, or slate is excavated from the ground. The operation of quarries is regulated in some jurisdictions to manage their safety risks and reduce their environmental impact. The word ''quarry'' can also include the underground quarrying for stone, such as Bath stone. History For thousands of years, only hand tools had been used in quarries. In the eighteenth century, the use of drilling and blasting operations was mastered. Types of rock Types of rock extracted from quarries include: *Chalk *China clay *Scoria, Cinder *Clay *Coal *Construction aggregate (sand and gravel) *Coquina *Diabase *Gabbro *Granite *Gritstone *Gypsum *Limestone *Marble *Ores *Phosphate rock *Quartz *Sandstone *Slate *Travertine Methods of quarrying The method of removal of stones from their natural bed by using different operations is called quarryin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Fort
A tree house, tree fort or treeshed, is a platform or building constructed around, next to or among the trunk or branches of one or more mature trees while above ground level. Tree houses can be used for recreation, work space, habitation, a hangout space and observation. People occasionally connect ladders or staircases to get up to the platforms. History Prehistoric hypotheses All great apes build tree platforms or nests as shelter from dangers on the ground, and the habit may have been inherited by humans. While no evidence of prehistoric human-made tree houses has been found, wooden structures would not have survived over time. In contrast, evidence of cave dwellings, rock shelters, and bonfires is detectable, but is notably scarce from before 40,000 years ago. This has led to the speculative hypothesis that archaic humans may have lived in trees until then. The skeletal changes due to the evolution of human bipedalism started at least four million years ago, but early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind-tunnel
A wind tunnel is "an apparatus for producing a controlled stream of air for conducting aerodynamic experiments". The experiment is conducted in the test section of the wind tunnel and a complete tunnel configuration includes air ducting to and from the test section and a device for keeping the air in motion, such as a fan. Wind tunnel uses include assessing the effects of air on an aircraft in flight or a ground vehicle moving on land, and measuring the effect of wind on buildings and bridges. Wind tunnel test sections range in size from less than a foot across, to over , and with air speeds from a light breeze to hypersonic. The earliest wind tunnels were invented towards the end of the 19th century, in the early days of aeronautical research, as part of the effort to develop heavier-than-air flying machines. The wind tunnel reversed the usual situation. Instead of the air standing still and an aircraft moving, an object would be held still and the air moved around it. In this w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minnesota Pollution Control Agency
The Minnesota Pollution Control Agency (MPCA) is a Minnesota state agency that monitors environmental quality, offers technical and financial assistance, and enforces environmental regulations for the State of Minnesota. The MPCA finds and cleans up spills and leaks that can affect public health and the environment. The MPCA staff develops statewide policies and supports environmental education, working with such partners as citizens, municipalities, businesses, environmental groups, and educators to prevent pollution and conserve resources. History The agency was created on May 18, 1967, to further strengthen Senator Gordon Rosenmeier's environmental policies following the Mississippi River oil spill. In 2018, the MPCA created the East Metro Unit to help address the PFAS released during the 3M contamination of Minnesota groundwater in the eastern Twin Cities metropolitan area. The agency planned to test the entire of the Mississippi River The Mississippi River i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
