Half-life

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Uploaded by on Sep 7, 2010

Free Science Help at Brightstorm! http://brightstorm.com/science Understanding the half-life of a radioactive substance.

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Education

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Top Comments

  • please talk slower... i understand the concept after 5-6 times of watching this... sorry, but it's true. :/

  • ...there might not be a slomo button, but there IS a replay feature

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All Comments (24)

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  • She Is SPEEDY GONZALES..................Waoh­....!!!!!!+ She Isn't As Good as The Other two Teachers Of Brightstorm

  • This video was awesome, thanks. It was just what I was looking for.

  • @enosaYT I am 99% sure she said 58 years while explaining; and although it looks like 51, I believe she wrote 58. So in your reasoning, you are preciously correct.

  • Hmm... she NEVER has a second cup of coffee at home....

  • omgosh, thank you so much ! this really helped a lot. (:

    and you don't need to talk slower. i thought the pace was fine !

  • @warjunkie0625 so true! she needs to talk slower...

  • I find that your talking at perfect speed, I guess most of these people have English as a second language

  • please a little slow next time

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