;O

Hello,

haven't been posting much for a long time. So basically here is a video on what we saw on Friday ;)

Video on Natrium Hydroxide experiment

Sodium + Water --> Sodium Hydroxide + Hydrogen Gas
[technically, this is wrong cause the sodium reacts with oxygen to form sodium oxide even before it is put in water.) [or it reacts with water vapour to already form sodium hydroxide]

This experiment is more 'wild' and the proportion of sodium is great.

Natrium is of course a fun thing to experiment with. Here's what they did:
Trash Can Explosion

Well, that's all.

Bye ;)

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Puzzle 28

Hi!

Sorry Si Kai, your "puzzle" has been rendered invalid.

I shall return to post on this blog again, as my duty as a citizen of the 2 Kejuju Blog (yours too), albeit intermittently.
This blog is on its last... something. Anyway, here's the puzzle!

AUTOLOGICALLY HETEROLOGICAL

Difficulty: Very Hard

Now, let's take a break from maths and learn a few vocabulary. :)

An autological word is a word that basically describes itself.
Confused? For example, "polysyllabic", "English" and "word" are all autological (Because "polysyllabic" is polysyllabic, "English" is in English, and "word" is a word).

A heterological word is just the opposite; it does not describe itself. "Red", "chair" and "quickly" are all heterological words.

You can basically group all the words in the English language as either autological or heterological. However, you'll soon realise that there is one word that does not really belong to either of these groups... do you know what it is?

If you want a hint, drag your mouse over the empty space below:

It's a word that can be found in this post!


Now to the answer to the Puzzle 27... drag your mouse over the empty space below to reveal the answer! Oh, and do remember to post your answers in the comments :)

31! The sequence is not 1, 2, 4, 8, 16, 32, 64... but 1, 2, 4, 8, 16, 31, 57...

If you don't believe me, here's a picture of how a cake shared by 6 people will be cut like. Count up the number of pieces yourself!


:)
Glen

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