Friday, September 19, 2008

Stall Writing

I found some beautiful writing in the bathroom in Scott Hall. It was in several different handwritings.

A MAN WHO HAS A
"WHY"
TO LIVE
CAN DEAL WITH ALMOST
ANY
"HOW"

A MAN WHO HAS A
"WHAT"
TO DO
PROBABLY WON'T
TRANSCRIBE
FORTUNE COOKIES
INTO
BATHROOM STALLS
Unless their
"what" to do
is to
transcribe
fortune cookies
into
Bathroom
stalls
I think we all need
a hobby
THIS IS MY
HOBBY
THIS IS MY
PASSION.

Saturday, August 23, 2008

Efficiency of a Microwave

I wanted to find out what percentage of the power supplied by my
microwave ends up in the food as heat. It was tricky because I did
not have a thermometer. I used the following procedure.


Measuring input power:

  1. Unplugged the refrigerator and checked that no computers or the
    stove were running.
  2. Timed how long it took for the wheel on the power meter to
    revolve once.
  3. Put some chili in a bowl in the microwave, turned it on for three
    minutes.
  4. Timed how long it took for the wheel on the power meter to
    revolve once

Measuring output power:

  1. Emptied a tray of ice into a glass bowl and added
    room-temperature water.
  2. Waited till the water felt as cold as the ice.
  3. Poured the water through a strainer into a measuring cup. Measured
    the volume of water.
  4. Poured the water back into the bowl. Covered the bowl with
    a lid.
  5. Put the bowl in the microwave and set the timer for 1 or
    2 minutes. Waited for the bell to ring.
  6. Took out the bowl, poured the water through a strainer into the
    measuring cup and measured the volume.

Data


Input power

Trial Time with Mic. Off (s) Time with Mic. On (s)
1 74 17
2 77 19

Output power

Trial Time (s) Init Vol of Water (mL) Final Vol of Water (mL)
1 120 500 600
2 120 125 330
3 60 330 410

Calculations


Power meter formula from

Michael Bluejay
.

Base Power = ( 3.6 * 7.2 ) / (Time with Mic. Off)

Total Power = ( 3.6 * 7.2 ) / (Time with Mic. On)

Input Power = Total Power - Base Power


This gives 1.17 kW, 1.03 kW. The average is 1.1 kW.



Output Power = ((Final Vol of Water) - (Init Vol of Water))
* (1.0 g/mL) * (333.55 J/g) / (Time)


This gives 0.28 kW, 0.60 kW, 0.445 kW. The average is 0.44 kW

This gives an efficiency of 40%. Unfortunately, the 90% t confidence
interval for the Output Power is (0.17, 0.77) so more trials are
needed.

Wednesday, June 08, 2005

Today #2

Today is annoyingly like any other day. The world has not changed much in one day, or any day. People have not changed much throughout history. But those are very big things, and they change slowly. I am small. I have changed, because when there is only one of me, and it is so unconsequential, it is very free to change. I am glad I changed, but I am begining to fear a limmit. I am bound by the fundementals of human nature, and cannot easily escape them. There is a way that I would like to though, if I could determine precisely what it is. I reached the conclusion of what I must do through a mode of thought that will not permit me to actually accomplish the goal. I must bring about a very drastic change.

Monday, April 18, 2005

Square 16

Wine = Wine Is Not an Emulator ==> W = Wine ==> 1 = ine ==> 1/e = ni ==> 1/(ei) = n ==> ei / -(e^2) = n ==> i / -e = n ==> 0.36788i ≈ n But WINE is an emulator.

Sunday, March 20, 2005

Not terribly good...

This HTML was created

using Microsoft Word® 97.

Beautiful, isn’t it?

<p>This HTML was created </p>
<p>using Microsoft Word® 97.</p>
<i><p>Beautiful</i>, isn’t it?</p>
That's the spirit! make it look as awful as possible, even if you have to use nonstandard html to do it. Well done. (But compared to the html this blogger form can create, it's really not that bad. Things like using a <span> tag for italics)

Today #1

Today is Prickle-Prickle, the 6th day of Discord, int the YOLD 3171. Isn't that nice to know? Today, seen in a larger scale of things: You can't even see it.

Thursday, March 10, 2005

Question #1

What is a foomatic and why is it printing software? (And why do I number all my posts ??)

Monday, March 07, 2005

Ramblings

I might believe that { I think therefore I am } ; But could I ever believe that { I am no therefore I do not think } ? --------------- is(X) :- thinks(X). am :- is(i). ithink :- thinks(i). ithink. |?- am. yes -------------- doesnotthink(X) :- isnot(X). isnot(X) :- is(X), !, fail. isnot(_). idontthink :- doesnotthink(i). |?- idontthink. no |?- doesnotthink(myself). yes --------- Oh well.

Tuesday, March 01, 2005

Interesting #4

From a document on Microsoft.com: "If the evidence at our www.microsoft.com/getthefacts Web site doesn't sufficiently convey the benefits and value of the Microsoft platform, we want to hear from you so we can work even harder to get that information to you." No doubt you will

Interesting #3

#define PERSON(YOU_ARE) # YOU_ARE #define WELCOME PERSON(WELCOME TO GH67Q) #define GOODBYE PERSON(GOODBYE) // Or not yet. There is still more: // Despite what many people think, // Foobar is in fact a deep orange #define ORANGE foobar #define PEEL () // and that orange has a peal #define AND_IT ; #define BECOMES ; #define STEP ; #define SEE WHAT YOU SAW // Then forget it #undef SEE // Then remember it #define SEE cout // then define it #define IT 0; // This is important #define THE int that_has_no_purpose #define OUR int // should have no purpose #define AND ;return #define what_is_included #include what_is_included // of course #define PROGRAM namespace MORE #define PROGRAMME namespace std #define BEGINS_HERE { #define ENDS_HERE } #define define #define BANANA main PROGRAM BEGINS_HERE // But where is here ? #define HERE << endl using // nothing the PROGRAMME // is a STEP // away from everything // I don't know what a cout is but // it doesn't sound like a compliment #define YOU cout #define ARE YOU #define A PERSON ? #define PROBABLY NOT! // just try and define yourself! #define YOURSELF << // YOU #undef ARE // WHO YOU THINK YOU #define ARE << /* OF COURSE */ // This is the program of fruit, // as it's name, gh67q, clearly implies // There is little substance to this fruit void ORANGE PEEL BEGINS_HERE STEP YOU ARE WELCOME HERE // You cease to exist #undef YOU #define YOU YOURSELF STEP SEE YOU GOODBYE AND_IT ENDS_HERE OUR BANANA PEEL BEGINS_HERE AND_IT BECOMES ORANGE PEEL AND IT ENDS_HERE #undef PROGRAM #define PROGRAM ; THE PROGRAM ENDS_HERE // OR DOES IT ?? // THERE IS YET MORE BANANA PEEL! OUR BANANA PEEL BEGINS_HERE AND_IT BECOMES MORE::BANANA PEEL AND IT ENDS_HERE