Who is credited with writing an anonymous article about the soviet expansion plans that was influential in the creation of the truman doctrine

What project establish leonardo da vincis reputation as a creative and talented engineer

Which new deal agency was most affective in aiding farmers during the depression

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity? they created the scientific method to outline how science should be conducted. they were able to find the orbit of a comet and predict the year of its return. they discovered the three newest planets--uranus, neptune, and pluto. they explained why objects appear to have color.