In typical rockets the mass ratio is between 10 and 30. Imagine a rocket with a total mass of 1 ton and a mass ratio of 1000: when empty, it would only weight one kg, including its cargo, while when full it would need to contain 999 kg of fuel!
Benefits of Bee Propolis For Skin Apparently, natural bee propolis is considered good for younger, acne prone skin, as well as more mature skin. Itâs now being used as a wrinkle fighter by what seems to be a growing number of women.
Iâve been seeing this big bee drilling holes in my deck. What kind of bee is it and what can I do to stop it from destroying my house?? What youâre seeing is a carpenter bee. They are very active in the spring as this is the time when females drill holes to start nests. We have an in depth article about CARPENTER BEE CONTROL which highlights all youâll need to know about this pest and how to treat. First, read the article.