building houses has been a problem for a will, but today there is a machine called the Big Delta that literally makes a house out of anything. Big Delta uses straw, dirt, mud and water to create a super cheap clay. This machine will 3D print an igloo looking house. This incredible structure stands over 40 feet tall.
The first model was the size of your hand, it made Lego size houses
Earth isn't the only place were people want to 3D print houses from local materials, there are architects who want to the same on the moon.
http://www.popsci.com/this-towering-3-d-printer-makes-clay-homes
1.Why would building houses out of clay be a good idea?
2. Architects want to build this same machine up in space would you think that this is a good idea or a bad idea? why?
Wednesday, September 23, 2015
Sunday, September 20, 2015
Can New Food Sources save Polar Bears from Extinction?
By: Andrew Bouchard
Polar bears are often the animal that represents global warming because they are largely at risk. They are at risk of extinction due to climate change. The season where the water is covered with ice is getting shorter and it is decreasing the availability of their main food source, the ringed seal. Since they cannot get food for a longer part of the year, they are beginning to starve.
Researchers Linda Gormezano and Robert Rockwell from the American Museum of Natural History have done research that shows that polar bears have found new food sources and have been feeding off of geese and caribou. Polar bears are adapting to their new climate.
During summer and spring, the ice starts to come back in. During this time, they have to live on land and are living off of their accumulated weight. The ice free season (the season when there is no ice on the water) has gone from 120 to 180 days and 28 to 48 percent of adult polar bears starve unless they can find food.
Caribou is a great source of food for polar bears because an adult caribou can hold a polar bear off for 27 days and a baby can hold them off for 8 days. Geese eggs are much less filling than caribou but they are also much easier to get. Polar bears are master opportunists. They are known for snacking on anything from berries to whale carcasses. In some places across the world, they have even recorded polar bears going after small bull walruses.
This may mean in the years to come that we will be seeing a decrease in the populations of geese and caribou but this remains to be seen. But, polar bears have to do what they need to do to survive. Like Charles Darwin said, this is survival of the fittest.
http://www.popsci.com/polar-bears-might-survive-ice-melting-by-hunting-new-prey
1. Polar bears food sources are becoming less available. What are some similar ways in which human’s food sources and production have to adapt to climate change? Explain your answer.
2. Polar bears are losing their territory due to climate change. In what other ways are humans influencing the loss of animal territories? Explain your answer.
The Reading Brain in the Digital Age: The Science of Paper versus Screens
The problem today is that most of the people will only or most of the time read on a screen book like kindles, I-Pads, IPhones, etc. With time I think that the paper books version will disappear, but the question is: is screen book better for our brains than paper versions?
In the article that I read it explained that viral YouTube video was posted in October 2011, a-one year old was on a I-Pad sweeping her finger on the screen making the icons move. This video shows us that now even younger kids start interacting with an I-Pad or IPhone or I-Pod. Do you realize that now we give our electronic devices to kids. I started using an electronic device at the age of nine and some starts at 1! If someone or yourself are like the little girl that started using the device at an early age you might have more chances of thinking magazines are useless and really hard to understand. Why would you think magazines are useless? Because you will expect the magazine to act the same way the I-Pad did.
Even kids who never touched a tablet before will still touch the pages of the paper book or try to put the book in his mouth because babies touch everything. Today, it's not because someone only use one kind that he can't understand the other. Now the person who just uses smartphones will still reach out for a mix of paper magazines and paper books, as well as the electronic devices.
Most studies about this subject proved that we read slower, less accurately and we have more difficulties understanding what we read on screen than on paper. The difference between screens and paper are that screens have more chance to drain more of our mental resources while we are reading and it's harder to remember what we read when we are finished.
Many people don't realize it, but most us approach a computer and tablets with our state of mind less prepared to learn than if we read on a handout a teacher gave us. In some studies, people reported that when we were trying to locate a particular piece of written information we would often remember where was the information in the text. In most cases, paper books have more obvious topography than screen book, the book present us the reader two defined domains- left and right pages- and a total of eight corner. It's easier to focus on a paper book because you can focus on a single page without losing track of where you are and you know if you are at the half of the book or not. The kindle will only tell you the number.``The implicit of where you are in a physical book turns out to be more important than we realized.`` says Abigail Sellen of Microsoft. She also said``I don't thing e-book manufacturers have thought enough about how you might visualize where you are in a book.``
A study was published in January 2013, Anne Mangen and her colleagues asked half of 72 10th graders to read a text on paper and the other half the same text but on computer. After the students did a reading-comprehension test. The students who read on the computer got a lower grade than the student who read the test on paper.
MY opinion is no I don't think using I-Pad to read is better for your brain even if I use it for other things. Most of the people including me will use their I-Pad for everything not just reading but also to play game or read the news, watch movies, taking pictures, drawing, etc. We think it's easier using our I-Pad or IPhones because its a small device and has a lot of function just in one thing. Even if we know which one is better adults still get or let use their one year an electronic device at this age. Instead of interacting with paper version. I hope you understand better about thus problem and that you will try to now read more paper books or use paper handouts instead of and pdf file.
You can find the article here:
http://www.scientificamerican.com/article/reading-paper-screens/
Discussion Questions:
1. Which one do you prefer between paper book version or kindles/I-Pad/IPhones/computer and why do you prefer this version? Give at least two reasons or examples.
2.We live in a world where everyone are using electronic devices for everything. Scientist tested the problem, even if we know which one is better we still use the computers. Do you think we should stay like this: with everyone reading or using tablets and with time paper books will probably disappear or put a balance with both of them?
In the article that I read it explained that viral YouTube video was posted in October 2011, a-one year old was on a I-Pad sweeping her finger on the screen making the icons move. This video shows us that now even younger kids start interacting with an I-Pad or IPhone or I-Pod. Do you realize that now we give our electronic devices to kids. I started using an electronic device at the age of nine and some starts at 1! If someone or yourself are like the little girl that started using the device at an early age you might have more chances of thinking magazines are useless and really hard to understand. Why would you think magazines are useless? Because you will expect the magazine to act the same way the I-Pad did.
Even kids who never touched a tablet before will still touch the pages of the paper book or try to put the book in his mouth because babies touch everything. Today, it's not because someone only use one kind that he can't understand the other. Now the person who just uses smartphones will still reach out for a mix of paper magazines and paper books, as well as the electronic devices.
Most studies about this subject proved that we read slower, less accurately and we have more difficulties understanding what we read on screen than on paper. The difference between screens and paper are that screens have more chance to drain more of our mental resources while we are reading and it's harder to remember what we read when we are finished.
Many people don't realize it, but most us approach a computer and tablets with our state of mind less prepared to learn than if we read on a handout a teacher gave us. In some studies, people reported that when we were trying to locate a particular piece of written information we would often remember where was the information in the text. In most cases, paper books have more obvious topography than screen book, the book present us the reader two defined domains- left and right pages- and a total of eight corner. It's easier to focus on a paper book because you can focus on a single page without losing track of where you are and you know if you are at the half of the book or not. The kindle will only tell you the number.``The implicit of where you are in a physical book turns out to be more important than we realized.`` says Abigail Sellen of Microsoft. She also said``I don't thing e-book manufacturers have thought enough about how you might visualize where you are in a book.``
A study was published in January 2013, Anne Mangen and her colleagues asked half of 72 10th graders to read a text on paper and the other half the same text but on computer. After the students did a reading-comprehension test. The students who read on the computer got a lower grade than the student who read the test on paper.
MY opinion is no I don't think using I-Pad to read is better for your brain even if I use it for other things. Most of the people including me will use their I-Pad for everything not just reading but also to play game or read the news, watch movies, taking pictures, drawing, etc. We think it's easier using our I-Pad or IPhones because its a small device and has a lot of function just in one thing. Even if we know which one is better adults still get or let use their one year an electronic device at this age. Instead of interacting with paper version. I hope you understand better about thus problem and that you will try to now read more paper books or use paper handouts instead of and pdf file.
You can find the article here:
http://www.scientificamerican.com/article/reading-paper-screens/
Discussion Questions:
1. Which one do you prefer between paper book version or kindles/I-Pad/IPhones/computer and why do you prefer this version? Give at least two reasons or examples.
2.We live in a world where everyone are using electronic devices for everything. Scientist tested the problem, even if we know which one is better we still use the computers. Do you think we should stay like this: with everyone reading or using tablets and with time paper books will probably disappear or put a balance with both of them?
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