Atoms Are Mainly Empty Space. Matter Is

Eratosthenes's Only Tools Were Sticks, Eyes, Feet, And Brains; Plus A Zest For Experiment. With Those Tools He Correctly Deduced The Circumference Of The Earth, To High Precision, With An Error Of Only A Few Percent. That's Pretty Good Figuring For 2200 Years Ago.

If We Say That God Has Always Been, Why Not Save A Step And Conclude That The Universe Has Always Been?

Think Of How Many Religions Attempt To Validate Themselves With Prophecy. Think Of How Many People Rely On These Prophecies, However Vague, However Unfulfilled, To Support Or Prop Up Their Beliefs. Yet Has There Ever Been A Religion With The Prophetic Accuracy And Reliability Of Science? ... No Other Human Institution Comes Close.

If The Greenhouse Effect Is A Blanket In Which We Wrap Ourselves To Keep Warm, Nuclear Winter Kicks The Blanket Off.

We've Tended In Our Cosmologies To Make Things Familiar. Despite All Our Best Efforts, We've Not Been Very Inventive. In The West, Heaven Is Placid And Fluffy, And Hell Is Like The Inside Of A Volcano. In Many Stories, Both Realms Are Governed By Dominance Hierarchies Headed By Gods Or Devils. Monotheists Talked About The King Of Kings. In Every Culture We Imagined Something Like Our Own Political System Running The Universe. Few Found The Similarity Suspicious.