Time Travel May Be Possible, But It

I Enjoy All Forms Of Music - Pop, Classical And Opera.

There Could Be Whole Antiworlds And Antipeople Made Out Of Antiparticles. However, If You Ever Meet Your Antiself, Don't Shake Hands! You Would Both Vanish In A Great Flash Of Light.

In Effect, We Have Redefined The Task Of Science To Be The Discovery Of Laws That Will Enable Us To Predict Events Up To The Limits Set By The Uncertainty Principle.

One Can Imagine That God Created The Universe At Literally Any Time In The Past. On The Other Hand, If The Universe Is Expanding, There May Be Physical Reasons Why There Had To Be A Beginning. One Could Imagine That God Created The Universe At The Instant Of The Big Bang, Or Even Afterwards In Just Such A Way As To Make It Look As Though There Had Been A Big Bang, But It Would Be Meaningless To Suppose That It Was Created Before The Big Bang. An Expanding Universe Does Not Preclude A Creator, But It Does Place Limits On When He Might Have Carried Out His Job!

In Britain, Like Most Of The Developed World, Stem-cell Research Is Regarded As A Great Opportunity. America Will Be Left Behind If It Doesn't Change Policy.