Reaching out across the Web .. ...分享 http://blog.sciencenet.cn/u/zuojun Zuojun Yu, physical oceanographer, freelance English editor

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如何“吹”出巨大的泡泡

已有 785 次阅读 2019-4-21 08:14 |个人分类:Tea Time/Coffee Break|系统分类:生活其它| “吹”泡泡


今天上午参加朋友家为小孩子举办的复活节聚会。除了找彩蛋egg hunt),巨大的蹦蹦房(活动式的,租来的),大兔子(外套,成年人穿的),还有一盆神奇的肥皂水

 

用来吹泡泡的不是一根吸管,而是两根粗麻线,一长一短,两头系在两根木棍上。短的麻线约30 cm,长的约40 cm。把带麻线的一头泡在肥皂水里,再拎起来,把短线拉直,长线自然挂下来,两根粗麻线中间的不规则面积形成肥皂膜,被风一吹,泡泡就产生了。许多成年人被这些泡泡吸引住了,有的忍不住自己试一下。我后来问提供肥皂水的年轻妈妈是什么秘方,她说家庭期刊上有。我刚刚上网查了,有几种做法。粘上其中之一。

 

How to make giant bubbles

There are a few recipes online. Here is one:

https://happyhooligans.ca/homemade-giant-bubbles/

 

Ingredients:

·      6 cups water (distilled is best but tap water is fine)

·      1/2 cup blue Dawn dish detergent/var/folders/kp/69vyrt757cj3rz91rmss511w0000gp/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/ir?t=happyhooligan-20&l=as2&o=1&a=B002W3EEO6 I used “ultra concentrated”. Dawn original is even better.

·      1/2 cup corn starch/var/folders/kp/69vyrt757cj3rz91rmss511w0000gp/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/ir?t=happyhooligan-20&l=as2&o=1&a=B000R36JXC (corn flour in the UK)

·      1 tbsp baking powder/var/folders/kp/69vyrt757cj3rz91rmss511w0000gp/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/ir?t=happyhooligan-20&l=as2&o=1&a=B0001M10OW (not baking soda)

·      1 tbsp Glycerine/var/folders/kp/69vyrt757cj3rz91rmss511w0000gp/T/com.microsoft.Word/WebArchiveCopyPasteTempFiles/ir?t=happyhooligan-20&l=as2&o=1&a=B006VEAPMW (or, ahem, personal lubricant)

Making your Homemade Giant Bubble Recipe:

1.   Dissolve cornstarch in the water, stirring really well.

2.   Stir in the remaining ingredients being very careful not to create a lot of froth. .

3.   Allow your mixture to sit for at least an hour, stirring occasionally when you see the cornstarch settling to the bottom.

FYI: The first several bubbles popped immediately, and I was feeling deflated (no pun intended). We soon discovered however, that more we played with the bubble formula, the silkier it became.

Before we knew it, we were making huge bubbles.  When they broke free of our wand, they jiggled and wobbled through the air, gaining altitude until they floated up over the housetops and out of sight.

How to make a giant bubble wand:

You can buy huge bubble wands like this one, but it’s really easy to make your own.  This is how I made ours:

I used two drinking straws, and a length of yarn that was 6 to 8 times longer than the length of one straw. Thread the yarn through the straws, tie a knot, and you’re good to go!

 

 




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