Home - back to the cover page
Aim - to the Introduction, aims, and comstruction of the project
Conclusion - to the answer to the question on the dishes
Birds - all the bird calls recorded by the dishes
E-Mail - write back, with comments, crits.
In order to do a comparison of the four dishes, we derived eight experiments over several terrain types to get a general impression of the ability of the dishes.
The terrain types were as follows:
The reason for the eight different land types, was because the primary function of the Parabolic Reflector Dish, today, is bird watching, and we thought that these areas were mainly where birds might be found.
As with all previous experiments, these experiments were conducted under the optimal conditions dictated in the Factors section of the project. Most of the factors were held at bay due to the season that the experiments were conducted in. Summer, the months of November and December and January. These months were the hottest and also very dry. The humidity was very low, as there had previously been a large drought, thus the air was parched, creating perhaps the most ideal conditions. For the experiments we have included a Temperature and Wind factor for accuracy in our results, the effect has been included in the conclusion. The Ear distance has been included so that you can see the furthest distance the human ear can hear in each situation, the comparison has also been included in the conclusion. Also included is measure for a microphone on its own as a control to show that the dish and microphone do actually play a role. We improved our method of experimentation by using a Casio keyboard, instead of the human voice as last year, to obtain a constant sound. Furthermore, the control- a simple microphone and amplifier- results have been included. The wind direction is of relatively no importance. The wind sock, created by the group to detect relative wind speed was used continuously, and if the wind ever increased beyond a certain predetermined setting, the experiment was aborted. All the experiments were carried out six times, in order to achieve maximum average, without any unconditional factors influencing the experiment. The experiments were conducted at midday, when atmospheric conditions had reached a dynamic temperature-air density. Thus reducing any external factors. See Factors in book 2.
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-137m
Ear-48m
Control-121m
Temperature: 13
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-14lm
Ear-69m
Control- 19m
Temperature: 13
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-134m
Ear-52m
Control-17m
Temperature: 13
Day/Night: Day
Wind direction: S >W
Dish: Beta
Person: Guy
Distance: Dish-186m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-173m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-196m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Dish: GammaPerson: Guy
Distance: Dish- 156m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-119m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish- 144m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-213m
Temperature: 12’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-236m
Temperature: 12’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-226m
Temperature: 12’c
Day/Night: Day
Wind direction: None
--NIGHT--
Dish Alpha
Person: Guy
Distance: Dish-142m
Ear-42m
Control-124m
Temperature: 19’c
Day/Night: Night
Wind direction: W > E
Person: Hylton
Distance: Dish-148m
Ear-63m
Control-12lm
Temperature: 19’c
Day/Night: Night
Wind direction: S > E
Person: Hugo
Distance: Dish-135m
Ear-49m
Control-320m
Temperature: 19’c
Day/Night: Night
Wind direction: W > E
Dish: Beta
Person: Guy
Distance: Dish-182m
Temperature: 19’c
Day/Night: Night
Wind direction: W > E
Person: Hylton
Distance: Dish-180m
Temperature: 19’c
Day/Night: Night
Wind direction: S > N
Person: Hugo
Distance: Dish-194m
Temperature: 20’c
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-152m
Temperature: 19’c
Day/Night: Night
Wind direction: S > N
Person: Hylton
Distance: Dish- 150m
Temperature: 22’c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-140m
Temperature: 19’c
Day/Night: Night
Wind direction: N > S
Dish: Delta
Person: Guy
Distance: Dish-215m
Temperature: 12’c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish- 241
Temperature: 12’c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish- 237m
Temperature: 12’c
Day/Night: Night
Wind direction: None
Comments:These results were as we expected. The dish Delta was the best and Beta came second, Gamma and Alpha came very close to each other. Therefore the wider the radius the further the dish can be heard over an uneven terrain. The reason for the radius is because it has a larger surface area, it can receive a larger amount of sound waves, thus increasing it's ability to amplify clear, yet faint sound..
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-8lm
Ear-39m
Control-52m
Temperature: 21’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-72
Ear-57m
Control-59m
Temperature: 21’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-80m
Ear-53m
Control-52m
Temperature: 21’c
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-63m
Temperature: 21’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-67m
Temperature: 21’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-73m
Temperature: 21’c
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-82m
Temperature: 21'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-8lm
Temperature: 21'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-87m
Temperature: 21'c
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-73m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish- 67m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish- 69m
Temperature: 12'c
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: Alpha
Person: Guy
Distance: Dish-85m
Ear-43m
Control-56m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-75m
Ear-54m
Control-62m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-85m
Ear-56m
Control-60m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-67m
Temperature: 13'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-72m
Temperature: 13'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish- 78m
Temperature: 13'c
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-85m
Temperature: 12'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-87m
Temperature: 12'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-91m
Temperature: 12'c
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-75m
Temperature: 12'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-67m
Temperature: 12'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-6lm
Temperature: 12'c
Day/Night: Night
Wind direction: None
Comments:We were shocked to see that the dishes Gamma and Alpha were the best in this experiment, the reason for this is that the other two dishes are of such a radius that the interference is to great as the dishes pick up extra noise which detracts from the sound source.
EXPERIMENT 3-FOREST
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-73m
Ear-100m
Control-72m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-78m
Ear-85m
Control-82m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-85m
Ear-87m
Control-76
Temperature: 22'c
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-45m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-47m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-49m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-73m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-78m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-85 m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-106m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-97m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-99m
Temperature: 12'c
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: Alpha
Person: Guy
Distance: Dish-100m
Ear-77m
Control-107m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-45m
Ear-85m
Control-9lm
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-49m
Ear-75m
Control-87m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-98m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-103m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-107m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-77m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-82m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-87 m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-107m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-100m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-103m
Temperature: 14'c
Day/Night: Night
Wind direction: None
Comments:Beta was the close winner between it and Delta, once again we assume that the greater surface area increased Stability of sound by simply increasing the amount of sound.
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-33m
Ear-30m
Control-30m
Temperature: 23
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-35m
Ear-33m
Control-35m
Temperature: 23
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-40m
Ear-35m
Control-35m
Temperature: 23
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-61m
Temperature: 23
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-55m
Temperature: 23
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-55m
Temperature: 23
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-67m
Temperature: 23
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-70m
Temperature: 23
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-76m
Temperature: 23
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-6lm
Temperature: 12
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-63m
Temperature: 12
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish- 61m
Temperature: 12
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: Alpha
Person: Guy
Distance: Dish-35m
Ear-32m
Control-3Om
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-39m
Ear-35m
Control-56m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-42m
Ear-40m
Control-49m
Temperature: 16
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-54m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-58m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-59m
Temperature: 16
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-69m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-74m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-80m
Temperature: 16
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-63m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-65m
Temperature: 16
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-63m
Temperature: 16
Day/Night: Night
Wind direction: None
Comments:Once again we are proven wrong with Gamma coming first. We believe that this is because of all the echo’s that were present. And these echo's were picked up the large surface areas, and because more of them were picked up more interference occurred, thus reducing the clarity of the dishes out put.
--DAY--
Dish: A1pha
Person: Guy
Distance: Dish-234m
Ear-17lm
Control-20lm
Temperature: 24
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-248m
Ear-186m
Control-196m
Temperature: 24
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-257m
Ear-192m
Control-2llm
Temperature: 24
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish -350m
Temperature: 24
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-367m
Temperature: 24
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-332m
Temperature: 24
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-240m
Temperature: 24
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-250m
Temperature: 24
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-263m
Temperature: 24
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-371m
Temperature: 12
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-376m
Temperature: 12
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-380m
Temperature: 12
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: A1pha
Person: Guy
Distance: Dish-236m
Ear-177m
Control-207m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-248m
Ear-195m
Control-199m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-257m
Ear-197m
Control-219m
Temperature: 15
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-354m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-370m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-335m
Temperature: 15
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-244m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-257m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-265m
Temperature: 15
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-375m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish- 380m
Temperature: 15
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-385m
Temperature: 15
Day/Night: Night
Wind direction: None
Comments: One of few experiments that went as we predicted, Delta being the best and Gamma being the worst. This is due to the increased surface area. This is perhaps because there was little interference from any additional noise, like echo's or people.
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-45m
Ear-26m
Control-17m
Temperature: 15’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-54m
Ear-3lm
Control-12m
Temperature: 15’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-45m
Ear-36m
Control-2lm
Temperature: 15’c
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-40m
Ear-35m
Control-1lm
Temperature: 15’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-43m
Ear-40m
Control-36m
Temperature: 15’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-45m
Ear-37m
Control-25m
Temperature: 15’c
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-50m
Ear-36m
Control-2lm
Temperature: 15’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-54m
Ear-34m
Control-27m
Temperature: 15’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-47m
Ear-46m
Control-3lm
Temperature: 15’c
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-60m
Ear-56m
Control-4lm
Temperature: 12’c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish- 54m
Ear-26m
Control-2lm
Temperature: 12’c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish- 50m
Ear-26m
Control-1lm
Temperature: 12’c
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: A1pha
Person: Guy
Distance: Dish-30m
Ear-18m
Control-30m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-30m
Ear-l0m
Control-36m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-30m
Ear-22m
Control-39m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-36m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-40m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-34m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-46m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-34m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-55m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-46m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-55m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-52m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Comments: We were not surprised when Delta came up tops, and then Beta and so on. Once again it is the surface area that we surmise to be the factor. Similar to the field with little external interference.
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-3m
Ear-4m
Control-lm
Temperature: 23'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-2m
Ear-6m
Control-2m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-2m
Ear-6m
Control-3m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-9m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-6m.
Temperature: 23'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-8m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-9m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-11m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-17m
Temperature: 23'c
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-4m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-7m
Temperature: 22'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-6m
Temperature: 22'c
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: A1pha
Person: Guy
Distance: Dish-3m
Ear-8m
Control-3m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-8m
Ear-8m
Control-3m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-4m
Ear-7m
Control-3m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-11m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-9m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-l0m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-22m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-1Gm
Temperature: 10'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-23m
Temperature: 10'c
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-4m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-9m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-7m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Comments:
The reason that Gamma was such a success in this experiment was that it had less surface area and thus the interference was less. Once again conditions were inversely the mimic of the field.
--DAY--
Dish: Alpha
Person: Guy
Distance: Dish-170m
Ear-153m
Control-172m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-188m
Ear-144m
Control- 181m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-187m
Ear-145m
Control-179m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-229m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-225m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-228m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-219m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-221m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-217m
Temperature: 26'c
Day/Night: Day
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-236m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hylton
Distance: Dish-245m
Temperature: 12'c
Day/Night: Day
Wind direction: None
Person: Hugo
Distance: Dish-239m
Temperature: 12'c
Day/Night: Day
Wind direction: None
--NIGHT--
Dish: A1pha
Person: Guy
Distance: Dish-187m
Ear-154m
Control-173m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-19lm
Ear-1SOm
Control- 190m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-189m
Ear-15lm
Control- 187m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Dish: Beta
Person: Guy
Distance: Dish-223m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-225m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-234m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Dish: Gamma
Person: Guy
Distance: Dish-217m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-214m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-212m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Dish: Delta
Person: Guy
Distance: Dish-237m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hylton
Distance: Dish-246m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Person: Hugo
Distance: Dish-241m
Temperature: 9'c
Day/Night: Night
Wind direction: None
Comments:
The field experiment showed that over flat terrain the wider circumferences received more sound and thus enhanced the quality of that sound so greater clarity could be obtained. the temperature of the water could increase or decrease the ability of the dishes resceptability, but as there are no other water sources avalible no furhter experiments could be conducted to prove this theory. Namely that is the water is cool, the air molecules will pass sound energy along more clearly, as there is no interferance from heat vibrations, so there should be an increase in sound, and if the temperature is high, then the molecules are already vibrating, producing a distortion in the sound waves.
Home - back to the cover page
Aim - to the Introduction, aims, and comstruction of the project
Conclusion - to the answer to the question on the dishes
Birds - all the bird calls recorded by the dishes
E-Mail - write back, with comments, crits.