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Kamis, 05 Juni 2014

A Gaming System Starring... Microbes

Pac-Man, but with microbes

Ed Reschke/Getty Images
Videogames may seem like the last place for fruitful work in biotechnology, but Stanford University bioengineer Ingmar Riedel-Kruse has reinvented 1980s classics to enlist living microbes. His custom electronics and augmented-reality software coax microorganisms to play key roles in Pac-ManBrick Breaker, and other reimagined 8-bit titles. Here’s a look at how Riedel-Kruse’s rig works.

1) Micro-avatar 
Riedel-Kruse uses single-celled protozoans called paramecia that typically live in ponds. Changes in an electrical field can cause some species to alter their steering (a behavior called galvanotaxis). The microbes selected for the videogames swim toward electricity using cilia that cover their bodies.

2) Remote-control microbes
A shallow, thumbnail-size chamber with a glass bottom corrals the paramecia. Electrodes lining the chamber’s edges are wired to a controller with an omnidirectional button. Pushing it left, for example, induces an electric field that guides the paramecia like a remote-controlled swarm toward the left electrode.*

3) Live broadcast
Each paramecium appears as a speck to the naked eye, but a webcam paired with a 5x-to-10x magnifying lens displays the microorganisms clearly on a monitor. The camera is fixed above the chamber, with LEDs for illumination.

4) Virtual interface
Object-detecting software turns the physical setup into a game by locating paramecia as they move around the chamber. Meanwhile, a video overlay enables the organisms to interact with digital images. In the game PAC-mecium, microbes “eat” pellets as they swim past them, and in soccer they “kick” the ball when they come into contact with its cartoon image.

Time: 60 hours

Cost: $60
* Hobbyist Geva Patz made his own version of Riedel-Kruse’s gaming console with laser-cut acrylic, pencil lead, and copper tape. It uses an electroencephalogram headset for a controller, allowing players to direct microbes with their thoughts.
This article originally appeared in the June 2014 issue of Popular Science.


Source : http://www.popsci.com/article/gadgets/gaming-system-starring-microbes?dom=PSC&loc=recent&lnk=6&con=a-gaming-system-starring-microbes

Lost At Sea? Survive With These Tricks

A handy manual to prepare you for life's misadventures. 
By Jia You


Illustrations by Chris Philpot
Jose Salvador Alvarenga was fishing off the coast of Mexico in late 2012 when a powerful storm sent his boat adrift. Marshall Islanders found the battered vessel nearly 16 months later, stuck on a reef—with Alvarenga still alive inside. Rainwater and a diet of fish and turtle sustained him (or so he told the press). Curious how DIY savvy could stave off disaster, we asked Frances and Michael Howorth, authors of The Sea Survival Manual, for advice. 
Shelter: Don’t discard any clothing; multiple layers can keep you warm during cold nights. On hot days, drape or prop clothes overhead.
Water: Never drink seawater. If you have a raincoat, detach the hood and use it to catch and store rainwater. Plastic bags and rain boots also make excellent containers. Always rinse them with the first raindrops to wash away salt from sea spray.
Food: A boat’s shadow can attract fish. To catch them, string jewelry into a lure. (Pieces from a smartphone can work too.) Shoelaces or unraveled sock threads can serve as fishing line. Save any uneaten bits for bait.
Rescue: Relax and find familiar shapes in clouds to ease boredom—and keep an eye out for planes and ships. If you spot one, use a pocket mirror or a smartphone screen to reflect sunlight. The signal can be seen up to 10 miles away on a sunny day.
For more sea-survival tips, head to the Howorths’ website, thehoworths.com.
WARNING: Use these methods as last resorts. If they don’t work, direct your complaints toididnotsurvive@popsci.com.
This article originally appeared in the June 2014 issue of Popular Science.


Source : http://www.popsci.com/article/technology/lost-sea-survive-these-tricks?dom=PSC&loc=recent&lnk=5&con=lost-at-sea-survive-with-these-tricks

Google Will Deploy $1 Billion Worth Of Satellites To Spread Internet Access

Silicon Valley's latest frontier is the edge of space itself.

O3b Satellites mounted to launch dispenser 
Google recently hired O3b Networks Ltd's founder and chief technology officer. This is the kind of satellite they make. 
O3b Networks Ltd
The tubes that make up the internet cover much of the world, but not all of it. Google has announced plans to get internet to where the tubes can't reach, with three technologies: balloons,high-altitude solar-powered drones, and the latest, satellites in space.
Google would not be the first to use satellites to cover the earth in internet. The early dotcom boom of the late 1990s saw companies like Iridium, Globalstar, and Teledisc market satellite phones and promise internet service, but most failed or declared bankruptcy in the face of tremendous initial costs and poor management. In 2010, the Pentagon tested routing internetthrough a satellite. Google's own satellite team will be headed by eminent alumni of satellite internet company O3b.

It is too soon to say whether Google's balloons, drones, or satellites will successfully expand internet access to the parts of the world without it. Whichever works, it is clear that Google is willing to go to the edge of space and beyond to spread the internet beyond the terrestrial tyranny of tubes.

Source : http://www.popsci.com/article/technology/google-will-deploy-1-billion-worth-satellites-spread-internet-access?dom=PSC&loc=recent&lnk=2&con=google-will-deploy-1-billion-worth-of-satellites-to-spread-internet-access


A Robotic Suit Good Enough To Deceive A Decepticon

Gear up with this big boy for the upcoming Transformers movie
























More than meets the eye. 
When De Repentigny speaks, his voice is modulated and amplified. The sound also causes the suit’s mouth to move, so it appears as though his robo-double is doing the talking. 
Photograph by Marc De Repentigny

Marc De Repentigny was only trying to be responsible when he built an 80-pound, seven-foot-tall motorized Transformers suit. Married with kids, he decided to audition for a French-Canadian game show that offered a chance at prize money to the most unusual contestants. De Repentigny molded styrene plastic into armored paneling, made motorized LED eyes, and spent months perfecting realistic-looking thrusters. A servomotor in the thrusters triggers a puff of compressed air and a flashing LED light, making the robot appear ready to blast off. His arms slip into the robot’s wide shoulders, and his hands reach into the bot’s elbows, where buttons let him activate the motorized fingers and faceplate. The suit doesn’t transform into a jet, but it did get De Repentigny on the game show—where he won $128,500. Next he plans to be first in line for Transformers: Age of Extinction, just not while wearing the suit. “I couldn’t sit down!” he says. “I’d have to watch the movie standing up.” 

Time: 2 years
Cost: $1,500
This article originally appeared in the June 2014 issue of Popular Science.


Source : http://www.popsci.com/article/gadgets/robotic-suit-good-enough-deceive-decepticon?dom=PSC&loc=recent&lnk=10&con=a-robotic-suit-good-enough-to-deceive-a-decepticon

Minggu, 27 April 2014

Definition Of Information Questions

 5W 1H Question :

Who
Identify the characters in the reading and make a list of them.
Draw connecting lines between the characters and describe to yourself the relationship between the characters.

What
Identify the events or actions and make a list of them.
Draw connecting lines between the events or actions to show the relationship between  them.
Draw connecting lines between the characters and the events as you describe to yourself the relationship between them.

Where 
Identify all the places in the reading and make a list of them.
Draw connecting lines between places, events and characters as you describe to yourself the relationship among them.

When
Identify all the time factors in the reading and make a list of them. 
Draw connecting lines between time factors, places, events and characters as you describe to yourself the relationship among them.

Why
Identify causes for events of actions and make a list of them.
Draw connecting lines from the causes to effects on the characters, events, places, or times as you describe to yourself the relationship among them.

How
Identify the way events took place and make a list of them.
Draw connecting lines between the way events took place and other factors as you describe to yourself the relationship among them 

Yes No Question :

Definition:       An interrogative construction that expects an answer of "yes" or "no." Contrast with wh- question.
Examples and Observations:

                        Homer: Are you an angel?
                         Moe: Yes, Homer. All us angels wear Farrah slacks.
                        (The Simpsons)

"Directing a movie is a very overrated job, we all know it. You just have to say 'yes' or 'no.' What else do you do? Nothing. 'Maestro, should this be red?' Yes. 'Green?' No. 'More extras?' Yes. 'More lipstick?' No. Yes. No. Yes. No. That's directing." (Judi Dench as Liliane La Fleur in Nine, 2009).

            Principal McGee: Are you just going to stand there all day?
            Sonny: No ma'am. I mean, yes ma'am. I mean, no ma'am.
             Principal McGee: Well, which is it?
             Sonny: Um, no ma'am.
             (Eve Arden and Michael Tucci in Grease, 1978)

The yes-no question is found in three varieties: the inverted question, the typical exemplar of this kind; the inverted question offering an alternative (which may require more than a simple yes or no for an answer); and the tag question:

            Are you going? (inversion)
            Are you staying or going? (inversion with alternative)
            You're going, aren't you? (tag)

The inverted question merely inverts the subject and the first verb of the verb phrase of the corresponding statement pattern when that verb is either a modal or an auxiliary verb or the verb be and sometimes have. The question itself may be positive or negative:
She is leaving on Wednesday.

            Is she leaving on Wednesday?
    . . . A positive question appears to be neutral as to the expected response--yes or no. However, a negative question seems to hold out the distinct possibility of a negative response.
            Are you going? Yes/No.
            Aren't you going? No.
(Ronald Wardhaugh, Understanding English Grammar: A Linguistic Approach. Wiley-Blackwell, 2003)
"There are many different ways to format questions on a survey. Let's say you want to measure people's attitudes toward premarital sex. You could ask a simple yes-no question:
        Are you in favor of premarital sex?
        ___ Yes ___ No
Or you could use a Likert-type scale where the question is phrased as a statement." (Annabel Ness Evans and Bryan J. Rooney, Methods in Psychological Research, 2nd ed. Sage, 2011) Also Known As: polar interrogative, polar question, bipolar question


Tag Question :

Question tags are the short questions that we put on the end of sentences – particularly in spoken English. There are lots of different question tags but the rules are not difficult to learn.

Positive/negative

If the main part of the sentence is positive, the question tag is negative ….
He’s a doctor, isn’t he?
You work in a bank, don’t you?
... and if the main part of the sentence is negative, the question tag is positive.
You haven’t met him, have you?
She isn’t coming, is she?
With auxiliary verbs
The question tag uses the same verb as the main part of the sentence. If this is an auxiliary verb (‘have’, ‘be’) then the question tag is made with the auxiliary verb.
They’ve gone away for a few days, haven’t they?
They weren’t here, were they?
He had met him before, hadn’t he?
This isn’t working, is it?
Without auxiliary verbs
If the main part of the sentence doesn’t have an auxiliary verb, the question tag uses an appropriate form of ‘do’.
I said that, didn’t I?
You don’t recognise me, do you?
She eats meat, doesn’t she?
With modal verbs
If there is a modal verb in the main part of the sentence the question tag uses the same modal verb.
They couldn’t hear me, could they?
You won’t tell anyone, will you?
With ‘I am’
Be careful with question tags with sentences that start ‘I am’. The question tag for ‘I am’ is ‘aren’t I?’
I’m the fastest, aren’t I?
Intonation
Question tags can either be ‘real’ questions where you want to know the answer or simply asking for agreement when we already know the answer.
If the question tag is a real question we use rising intonation. Our tone of voice rises.
If we already know the answer we use falling intonation. Our tone of voice falls.









Source :

http://designjournalsos.blogspot.com/2012/01/amusement-theme-starter-ultimate-how-to.html

http://www.englishclub.com/grammar/verbs-questions-tag.htm


Example of Questions

5W1H Question 

Who
Who's that? That's Febrian Summahadi.
Who benefits?
Who is it about?
Who opened the door?
Who else will do this?

What
What do you do? I am an dentist
What kind of music do you like? I like quiet Sons
What time did you come home?about 7.00pm
What's your name? I'm Febrian
What your address? In Bekasi

Where
Where are you from? I'm from Indonesia
Where do you live? I live in Bekasi
Where do they live? They live in Cikampek
Where else?
Where are you? 

Why
Why do you sleep early? Because I've got to get up Erly
Why does that happen?
Why don’t I help you?
Why not?
Why do you love me?

When
When do you go to work? At 7:00
When is your birthday?  On Februari 15.
When is the report due,sir? On Friday
When will it start/end?
When, exactly, will you...?

How
How can I help you? I'd like to borrow your pen
How do you go to campus? I drive a car
How long did you stay in that hotel? For two weeks.
How old are you? I'm 21.


Yes - No Question

Do you like Horror movie?No, I don't
Do you like basketball?
Do you often feel the pain? No, not very often
Do you like to eat sweet things?
Do you like your job?


Tag question

with auxiliaries
You've got a car, haven't you?

without auxiliaries (use: don't, doesn't, didn't)
They play football on Sundays, don't they?
She plays football on Sundays, doesn't she?
They played football on Sundays, didn't they?
Special question
Open the window, will you?
Let’s take the next bus, shall we?




Source: 
http://ielts-yasi.englishlab.net/YES_NO_QUESTIONS.htm

http://www.englisch-hilfen.de/en/grammar/qu_tags.htm

Kamis, 27 Maret 2014

Pronouns

Pronouns
A pronoun is used in place of a noun or nouns. Common pronouns include he, her, him, I, it, me, she, them, they, us, and we. Here are some examples:

INSTEAD OF: Luma is a good athlete.
She is a good athlete. (The pronoun she replaces Luma.)
INSTEAD OF: The beans and tomatoes are fresh-picked.
They are fresh-picked. (The pronoun they replaces the beans and tomatoes.)
Often a pronoun takes the place of a particular noun. This noun is known as the antecedent. A pronoun "refers to," or directs your thoughts toward, its antecedent.
Let's call Luma and ask her to join the team. (Her is a pronoun; Luma is its antecedent.)
To find a pronoun's antecedent, ask yourself what that pronoun refers to. What doesher refer to in the sentence above—that is, who is the her? The her in the sentence is Luma; therefore, Luma is the antecedent.

Subjective Pronouns
A subjective pronoun acts as the subject of a sentence—it performs the action of the verb. The subjective pronouns are he, I, it, she, they, we, and you.
He spends ages looking out the window.
After lunch, she and I went to the planetarium.


Objective Pronouns
An objective pronoun acts as the object of a sentence—it receives the action of the verb. The objective pronouns are her, him, it, me, them, us, and you.
Cousin Eldred gave me a trombone.
Take a picture of him, not us!


Possessive Pronouns
A possessive pronoun tells you who owns something. The possessive pronouns arehers, his, its, mine, ours, theirs, and yours.
The red basket is mine.
Yours is on the coffee table.


Demonstrative Pronouns
A demonstrative pronoun points out a noun. The demonstrative pronouns are that, these, this, and those.
That is a good idea.
These are hilarious cartoons.
A demonstrative pronoun may look like a demonstrative adjective, but it is used differently in a sentence: it acts as a pronoun, taking the place of a noun.


Interrogative Pronouns
An interrogative pronoun is used in a question. It helps to ask about something. The interrogative pronouns are what, which, who, whom, and compound words ending in "ever," such as whatever, whichever, whoever, and whomever.
What on earth is that?
Who ate the last Fig Newton?
An interrogative pronoun may look like an interrogative adjective, but it is used differently in a sentence: it acts as a pronoun, taking the place of a noun.


Indefinite Pronouns
An indefinite pronoun refers to an indefinite, or general, person or thing. Indefinite pronouns include all, any, both, each, everyone, few, many, neither, none, nothing, several, some, and somebody.
Something smells good.
Many like salsa with their chips.
An indefinite pronoun may look like an indefinite adjective, but it is used differently in a sentence: it acts as a pronoun, taking the place of a noun.


Relative Pronouns
A relative pronoun introduces a clause, or part of a sentence, that describes a noun. The relative pronouns are that, which, who, and whom.
You should bring the book that you love most.
That introduces "you love most," which describes the book.
Hector is a photographer who does great work.
Who introduces "does great work," which describes Hector.


Reflexive Pronouns
A reflexive pronoun refers back to the subject of a sentence. The reflexive pronouns areherself, himself, itself, myself, ourselves, themselves, and yourselves. Each of these words can also act as an intensive pronoun (see below).
I learned a lot about myself at summer camp. (Myself refers back to I.)
They should divide the berries among themselves. (Themselves refers back to they.)


Intensive Pronouns
An intensive pronoun emphasizes its antecedent (the noun that comes before it). The intensive pronouns are herself, himself, itself, myself, ourselves, themselves, andyourselves. Each of these words can also act as a reflective pronoun (see above).
I myself don't like eggs.
The queen herself visited our class.


Ref:
http://www.towson.edu/ows/pronouns.htm

http://agape92.blogspot.com/2014/03/pronouns.html