julian

"Tell me and I forget, teach me and I remember, involve me and I learn" -Benjamin Franklin

Project collision

In Project Collisions, I am creating a system to deliverSwitch Game cards by drones. The drone will release the package from a height up to 10 meters and my job as an engineer is to develop a solution so that the package is protected in its fall.

For Drop 0, a package with the dimensions of  Width 10.5cm height of 17cm and a length of 1 cm   was dropped from a height of 5 meters. Below is a photograph of the package:

 

The package will hold 1 through three switch games. Inside, items are organised like this:

->

The purpose of Drop 0 is to get baseline data about our package. The group developed a testing procedure so that we can be consistent on how data is collected throughout the design cycle.

  1. Reset stopwatch
  2. Bring package to the balcony for drop
  3. clear area of people
  4. plug the computer to force plate
  5. Start the recording of the force plate
  6. start the videos
  7. make sure the package is 40 cm off the bar of the balcony
  8. start the stopwatch and drop at the same time
  9. stop stopwatch as soon as the package hits the ground
  10. stop videos
  11. measure the distance from the middle of the force plate to the center of the box within a 30cm radius 
  12. get the package and bring it to a safe place
  13. get the videos of the Ipads
  14. record the force and stopwatch time in the data table

A force plate at the bottom of the drop was used to collect data on the impact force of the package. Our group was ok in dropping because it hit the side of the force plate. As a project metric for accuracy, we want our project to Hit some where in a 60 cm squared box with the center of the force plate being the very middle of the box.

The average force on impact was 172N . As a project metric, our group has decided toTry and reduce the impact by at least 50%

Summary: Project Metrics

Our team has decided that the three most important criteria to design towards are ____________________<input project metrics> Below, each metric is described and the goals were determined by data from Drop 0.

    • Waterproof
    • Accurate
    • Reduce the force by 86N.

    We want to make the box safe with the products clean.

    Our group is now building the first prototype. I hope that we will be successful in dropping the box.

One Day

I chose photography because I’ve always been fascinated with taking pictures. Something about is is just really cool. Taking good pictures is always fun because then you can show everybody and feel proud of yourself. I hope to learn more about the aspects of a good photo and to learn how to take really great photos. I also hope to learn more about the camera itself.

Project Collision Egg drop #1

On Monday, January 7, I began Project Collisions with an egg drop. This design challenge was to drop a raw egg from a height of 5 meters without breaking it. A material list with items to purchase was provided. My first design was a parachute design with two simple parts, the parachute and the part that holds the egg. most of it was made from newspaper, but the design also included string, paperclips and two balloons. As the egg was dropping, I was a bit scared because I was almost sure the egg would break. at the beginning of the drop, as soon as I released the parachute I was wondering what would happen. almost two seconds after i dropped the parachute, I heard everyone gasp  because the egg rolled out and fell to the ground. Our design was unsuccessful because the egg wasn’t secured in the base making it easy to roll out. Next time, I would use a different design or make the base better when the egg wouldn’t roll out so our egg drop would be successful.

Project Collisions is using the idea of drone delivery. During my research, I realised drone delivering is kind of risky and big things would require a bigger drone, a more powerful drone and  a better parachute to get to the ground safely. so if I would deliver things by drone, it would most likely to be toys or in a general type of physical entertainment

A Battle for Family

Nathan, a normal kid, on the outside at least. He lives with his older sister, she is all he has left. His mom left one day, went to the market? Probably not. His dad in a war, most likely to never come back. Until one day, a letter came. Who knew just a simple letter could change a life like this. before he knew it, they where out of the house, searching. Searching for their family.

J Rivera – Sci-Fi

Fly by

 

Jun’s Bookmark                         Aidan’s Bookmark

Foragers to the future

Science eggs (Growing and shrinking)

In science we did an experiment where we put eggs in corn syrup and water and see how they reacted, then asked ourselves why did that happen. first the eggs had to get stripped of there shell which vinegar did the trick for. then one egg in water, and the other in vinegar. all teams in our science class did this project, but some could have come out a little differently. My groups design is repeatable because we had written down a good detailed procedure in which to follow and get a good result. Looking back after completing this assignment I realised that mass calculating might have been in issue in my data collection because we had some problems with the machine and i just think we could have done that a bit better. An improvement I would make while doing this investigation again would be to be more careful with the eggs so we would be able to do more experiments with the same egg to get maybe unexpected results. when my team finished the experiment one of the eggs broke meaning we couldn’t do a side experiment with the egg. Additional information that I would like to collect to help me understand more about this phenomenon would be something like more how the membrane works and how the little microscopic holes form. In using an egg with a membrane we are representing a cell. Cells cannot be seen but it can be much easier to show with an egg. The cell membrane has selectively permeable membrane, meaning that some things can go in and out of it with ease, and others cant.  An egg also has a selectively permeable membrane allowing water in, but not corn syrup due to the difference in molecule size.  The water molecules are smaller, making it it more liquid like, but the corn syrup molecules are bigger, making it dense and slow, although still a liquid. The water molecules , being smaller, can fit through the holes in the eggs membrane expanding the egg, but the corn syrup being more dense cannot fit through the holes but being so dense, can in a way squeeze the eggs white out.

River Field Study – Data Collection 3

Today is Nov 10 and we went to the Wenyu River site to collect data for the third time. We have gone to the Wenyu River site five times before, but the first two times where to figure out where to work and to get used to the area.

Photo 1                                                                                              Photo 2

The first picture is of our first site which has a harder ground and was more green in the hotter months. The second photo is of our second site which is more green than the first site, although the second site was more brown during the hotter seasons. Site one is more populated with ants while site two is more populated with a variety of insects and also has spiders.

In November the data my team collected was  the same for both quadrants because they both held zero bugs while we were there.  The drop in number most likely due to the cold weather and how either the bugs died of cold or stayed burrowed under ground to stay warm. I notice that the data is going down from September 10 to November 20 (today). In January we are going back to the site again, I wonder if the numbers will start to go up from there or if they will be high in January and float around that number.

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Stories of the Future: Day Zero

The three biggest problems needed to be solved in my opinion are:

  1. World Peace.
  2.  Global warming .
  3.  World hunger.

The two wonders or questions I have are:

  1. How much will our technology improve?
  2.  How will more problems come as we move into the future?

Do you have an optimistic or pessimistic view of the future?

  1. optimistic.

The topic of food, water, and communities are connected because they all help us survive, communities keep the food and water going and the food and water keeps the communities going, and thats how we can keep surviving.

Headline: The future is there, but will we take our steps towards it?

Big Data, Best Data. Or maybe not?

Julian Rivera 

WIll Data save you, or will it destroy you? Will what you think of Big Data effect your daily life? What can you do? Is there an escape? Or will you be forced to cope with Big Data? Data is very useful in our normal daily lives, but that doesn’t mean it’s always under our control. Because it can be used against us and in many ways that some wouldn’t expect. But it could be used in ways to help us in again, many ways we wouldn’t expect. 

Some of the best hackers are able to get into your computer from behind a different screen just from you clicking on a link that’s on the top of your browse, and these hackers can either use your data against you or to sell it for money. Even some companies can take your data without your knowing. When you get a new app on your phone and it asks for your location, you should probably think does this app really need it. Just pressing the right button on that tiny detail could do more things that you wouldn’t expect.  

But of course big data is very useful in many different, ways that you might not expect, for say ads, when searching something up on some search engines they will translate what you search into data that will determine some of your ads, if you don’t want ads you can get an ad blocker though of course it might help to get some useful ads. But of course, that goes as far as using your microphone to determine the ads you get, there is a rumor about google using your microphone to target ads you would like towards you, this rumor has been proven and disproven many times. Even so, this would be very uncomfortable for many people. 

Robots are set to patrol in some advanced places around the world and are able to predict a crime that might happen, around what time it might happen, and the percentage of chance of it actually happening. Facial recognition is a big thing with this to, when a robot sees a face and the percentage of him/her committing a crime it will run his face through a data base which will tell the robot its committed crimes in the pass (if any) and other possibly important things which will also help the robot determine good or bad. Also the robot will send it in a shared police network that will tell the police all the data it collected. 

When I think of choosing a side for big data, Privacy or the Convenience of technology, I can’t really choose a side, there both important to us for different reasons. Privacy will continue to drift away from us the more advanced our technology and world gets, and if you still want all your privay than most people would think that you really live under a rock. So we should probably get used to our data being collected and stored somewhere for safekeeping.  our data can be collected and put into these data bases but that doesn’t mean that the data will be used against us and will cause something bad to happen, it actually could be used for us as an alibi or proof that something happened when you need something like that. 

“Big Data | Privacy International.” YouTube, YouTube, 12 May 2015, www.youtube.com/watch?v=HOoKhnvoYkU. 

TEDtalksDirector. “Kenneth Cukier: Big Data Is Better Data.” YouTube, YouTube, 23 Sept. 2014, www.youtube.com/watch?v=8pHzROP1D-w. 

Mitchollow. “Is Google Always Listening: Live Test.” YouTube, YouTube, 12 Apr. 2018, www.youtube.com/watch?v=zBnDWSvaQ1I 

 

 

 

 

 

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