BELL WORK 9/6/2015- GET YOUR COMP BOOK! An engineer is designing a toilet that is supposed to save water with each flush.  The amount of water used will depend on the deposit amount.  Which of the following should the engineer not consider while designing the prototype?​ ​ The amount of water held in the reservoir​ The color of the model​ The cost of materials​ The ease of installation

Toady’s goals… I can identify the steps of the design process and put them in the correct order. I can differentiate between adaptive technology and assistive technology.

Engineering Design Process 1ST = ASK 2ND = IMAGINE 3RD = PLAN 4TH = CREATE 5TH = IMPROVE

Lets practice!

ask Marty was playing fetch with his dog Buddy after school one day. “Buddy never gets tired of playing this game no matter how long we play it!” Marty thought. Marty’s arm begins to get tired from throwing the ball over and over again. He wonders if there’s some way he can still play fetch with Buddy, while giving his arm a break at the same time.

imagine Marty uses the internet to search for dog toys associated with fetch. He finds a product called the Super Launcher 2000 that allows you to throw the ball over 100 feet with very little effort. Marty reads some reviews on the product that say it doesn’t work very well. He thinks he can build something better. “Maybe I can build my own launcher using a design similar to a sling shot,” Marty thinks to himself.

plan Marty decides to build a tennis ball launcher that works very similar to a sling shot. He sketches several versions and weighs the pros and cons of each design. He then picks the best design and creates a shopping list of all the supplies and materials he will need to build this launcher.

create Marty spends his Saturday morning building a prototype for his tennis ball launcher. He finally completes the prototype around lunch time and decides to take Buddy to the park to test it out. At the park, Marty uses the launcher to throw the tennis ball about 90 feet away. Marty plays fetch with Buddy for over an hour and never notices his arm getting tired. “Success!” Marty exclaims.

improve Marty does notice that his prototype tennis ball launcher could use a better grip on the handle. He thinks to himself, “This product is great, but maybe if I add a cushion to the handle it could be even better.” He modifies the handle on his new prototype.

BIOENGINEERING page 18 in comp. book Adaptive vs. Assistive The Engineering Design Process

What is bioengineering? Bioengineering—the application of engineering to living things It’s categorized into two different groups… Assistive—helps someone without changing them permanently Adaptive—actually change the living organism

Assistive Bioengineering… Add some examples to your notes! Examples: Eye glasses Hearing aids Wheel chair ramp Cane Large print book Contact lenses

Adaptive Bioengineering… Add some examples to your notes! Examples: Gene therapy Implants Insulin pump Biofuels (corn made into fuel/gas) Artificial skin

Assistive: Hearing Aid Adaptive: Cochlear Implant

Adaptive Bioengineering Irradiated Foods: Food irradiation (the application of ionizing radiation to food) is a technology that improves the safety and extends the shelf life of foods by reducing or eliminating microorganisms and insects.​ Irradiated Foods

Adaptive Bioengineering Biofuels: A biofuel is a fuel that is produced through contemporary biological processes, such as agriculture and anaerobic digestion, rather than a fuel produced by geological processes such as those involved in the formation of fossil fuels, such as coal and petroleum, from prehistoric biological matter.​ Biofuels

Adaptive Bioengineering Pest Control: Pest control refers to the regulation or management of a species defined as a pest, usually because it is perceived to be detrimental to a person's health, the ecology or the economy. ​ Pest Control

Which of these is an example of how bioengineering could be used to save a species of animal that is being killed by a new disease? A. keeping animals in zoos so that they do not have contact with diseased animals B. hunting animals that are sick to remove them from the population C. modifying genes of some animals to improve their ability to recover D clearing a forest so the diseased animals get more sunlight