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OK, this one is called 'Spinning colour wheel'.
好的，這個叫做“旋轉多彩輪”。
It looks like you get some cardboard and draw a circle on it,
你需要一些卡紙并在里面畫上圈，
divide it into six equal segments and colour each one in using different colours, then you thread a piece of string through the middle.
把它分成6個等份并用不同的顏色在每一個上面涂色，之后你用一根線從中間穿過去。
So we'd need some string as well.
那么我們還需要一些細繩。
Yes, sorry …um …and you spin the wheel around and if you can get it spinning fast enough, hopefully the colours all merge and show up as white.
是的，抱歉，你將它轉動起來，如果你轉的足夠快，你就會發(fā)現(xiàn)顏色全都融合了，只露出白色。
Oh, I didn't know that. What's the principle behind it?
我不知道這個。背后的原理是什么？
Well it's pretty elementary physics, really. It teaches them about how white light or ordinary light is made up.
這是普通物理學，告訴他們白光或普通光是如何形成的。
Hmm, well that doesn't sound too bad. Now there's only one more left in this book isn't there? What doesthat one say?
聽起來不錯。現(xiàn)在書上還剩下一個實驗吧？那個實驗是什么？
Um, well it's another one where they'd get to make something. Sounds very interesting.
另一個關于如何制作一些東西的實驗。聽起來很有趣。
You need quite a lot of equipment actually - a hand drill, an old record, a pin or needle, some paper and a bolt.
事實上，你需要很多材料。一個手搖鉆、一個舊唱片、一個大頭針或針，還有一些紙和一個螺釘。
Hmm, go on, what do they have to do?
繼續(xù)，需要這些做什么？
Well, they basically make a record player.
大體上是要做一個留聲機。
The main idea is to teach them about recording sound, but hopefully they'd also see that you need motionand an amplifier to make the sound heard.
主要意圖是教他們錄制聲音，但是你還需要運動和一個擴音器使人聽到聲音。
OK, well it does sound interesting. Shall we go through all of those again and decide if any of them aregoing to be suitable?
好的，聽起來很有趣。我們要不要把這些實驗再過一遍，然后決定哪個更合適？
