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Why is SSTO impossible?

Why is SSTO impossible? The principal complicating factors for SSTO from Earth are: high orbital velocity of over 7,400 metres per second (27,000 km/h; 17,000 mph); the need to overcome Earth’s gravity, especially in the early stages of flight; and Read more…

Is Dequadin good for sore throat?

Is Dequadin good for sore throat? Dequadin is used in topical treatments of oral problems, such as sore throat (tonsillitis and pharyngitis), gingivitis, and canker sores. Dequadin helps prevent infections after tooth extractions. What is Dequalinium used for? It is Read more…