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- From: jmorris@spider.co.uk (John Morris)
- Newsgroups: sci.physics
- Subject: Re: How can you measure the following ?
- Keywords: stopwatch
- Message-ID: <1992Nov20.141303.14555@spider.co.uk>
- Date: 20 Nov 92 14:13:03 GMT
- References: <1992Nov19.115552.16917@daimi.aau.dk>
- Sender: news@spider.co.uk (USENET News System)
- Organization: Spider Systems Limited, Edinburgh, UK.
- Lines: 25
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-
- In article <1992Nov19.115552.16917@daimi.aau.dk> snil@daimi.aau.dk (Sven Nielsen) writes:
- >In how many ways can you measure the height of a tall building using only
- >these three tools : Stopwatch, barometer and tape measure.
- >Now use your imagination. I'll give a few examples :
- >
- >1. Throw the barometer out from the top of the building and use the stopwatch
- >to measure the time it takes before the barometer hits the ground. The height
- >h = g/2 * t^2 ............
- >
- >2. Make a pendulum of the barometer and the tape measure. Lower the barometer
- >until it almost touches the ground then let it swing and measure the period
- >using the stopwatch. h = g * T^2 /(4*pi)^2 (I think ...)
- >
- >3. While doing 2. just read out the value on the tape measure.
- >
- 4. Go to the architect who designed it and say "If you tell me how tall
- that building is I will give you this fine barometer..."
-
- :-)
-
- John.
-
-
- --
- -John Morris-Spider Systems Ltd-031 554 9424-jmorris@spider.co.uk-GM4ANB@GB7EDN-
-