How alkali metals react with water and air.

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18 comments posted so far. Expand all comments Login to add a comment.

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1. ktg_5 2 years ago

Holy fuck that last experiment 2:15!!! How much did he drop? We're talking a few grams aren't we? :O

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2. blackty 2 years ago

The next one down is when I go to the toilet after eating Indian cuisine.

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3. Flox 2 years ago

It's actually "alkali", don't know how I got the title wrong :p

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4. Baboon 2 years ago

can you hear him whistle at the end? like (we're doomed) :|

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5. Tareim (admin) 2 years ago

#3 I've updated the title for you

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6. Vergetta 2 years ago

I love science stuff, more please. !! :)

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7. Tehrasha 2 years ago

#1 He did not drop very much. It is heavy enough that it sank, then ignited the resulting hydrogen gas while underwater. The pressure wave from the explosion broke the glass.

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8. loadrunner 2 years ago

Don't even dare to try Francicum. :)

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9. tim420 2 years ago

Many years ago, I once dropped a small cube of caesium into a sink of water at school, i got sent home for 3 days, and had to pay for a new sink! >:)

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10. primate1970 2 years ago

I remember watching this very same video in science class back in the 1980's.....! :)

Thanks for the memories.... :D :D :D :D ;)

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11. sgtstone5 2 years ago

It's all clear now why my dad took my chemestry set away from mr :'(

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12. Namron7 2 years ago

Wish we had this video in skool when I was a kid >:)

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13. huldu 2 years ago

I guess the camera broke showing the next one due to the cut? j/k! Felt like something was missing in the end.

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14. Wynadorn 2 years ago

look around you? :P

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15. irishgek 2 years ago

0:51 just before he lifts the blade after cutting the potassium you see CHUCK NORRIS in the Metal just before it oxidises , Ok might not be chuck but there is a face there !

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16. blackd 2 years ago

Bulk francium has never been viewed. Because of the general appearance of the other elements in its periodic table column, it is assumed that francium would appear as a highly reflective metal, if enough could be collected together to be viewed as a bulk solid or liquid. However preparing such a sample is impossible, since the extreme heat of decay (its longest isotopic half life is only 22 minutes) would immediately vaporize any viewable quantity of the element.

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17. sux2bu 2 years ago

#16 You should at least give Wiki some credit for that direct quote from their site. Quotations would suffice. :D

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18. stonelocomotief 2 years ago

#1 He doesn't drop only a chunk of metal. It's in a small container that is made of water soluble material, such as polysacharide. If it wasn't in this container, it would have lit on fire in the air or explode immediately on contact with the water. For the sake of an increased visual effect and the safety of handling the metal it is put in said container.