At the base, just the heading of the page and the historical references are clear, with vertical rotation possible. You get best essay writing services now. The menu items and page content are invisible (on both Android phones I can test), yet you can accidentally click the menu buttons (invisible); Conversely, one of the menu items gave me a nearly normal menu and content, but with buttons that didn’t work.
Various authors have credited the invention of the thermometer to Hero of Alexandria. The thermometer was not a single invention, however, but a development. Hero of Alexandria (10–70 AD) knew of the principle that certain substances, notably air, expand and contract and described a demonstration in which a closed tube partially filled with air had its end in a container of water. The expansion and contraction of the air caused the position of the water/air interface to move along the tube.