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...energy. Gender bias on Wikipedia is such a big deal that it even has its own Wikipedia page. Once you’ve got the hang of Wikipedia editing, you don’t even have to do a lot of heavy-lifting to make a difference. You can do some tidying up and micro-improvement of pages about scientists that are already there. Anything from fixing typos or improving readability, to...

...energy of the dinitrogen bond. What is the bond order in dinitrogen, N2? Three as dinitrogen contains a triple bond, N≡N. Green plants depend on nitrogen fixation - the combination of atmospheric nitrogen with hydrogen and oxygen to form ammonium compounds or nitrates. On the roots of peas, beans and other members of the legume family, there are nodules (Figure 5),...

...Solar System. It also opens up the possibility of extracting water from lunar rocks. And one reason why we can explore these fundamental questions is in large part due to these wonderful tiny fragments. How to use the Virtual Microscope Click on the options below to learn how you can examine the Moon rocks from the first Moon landing. Zooming in and out [Zoom in] You can...

...solar system (4.24 light years away), where recently a single planet was discovered, has 12% of the sun’s mass and is an ordinary (not ultracool) red dwarf. Telling transits In 2010, a group of scientists began monitoring the closest dwarf stars using a robotic telescope in Chile called TRAPPIST (the Transiting Planets and Planetesimals Small Telescope). They were...