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First 3D Printer Launch by NASA on 2014

 Nasa is planning to launch a toaster-sized 3D printer into space next year to help astronauts manufacture spare parts and tools in zero gravity.
It will be the first time a 3D printer has been used in space and could help reduce the costs of future missions and saves time and energy of astronauts.
The goal of 3D printing is to take this capability to microgravity for use on the International Space Station. In space, whatever astronauts have available on orbit is what they have to use - but just like on Earth, parts break or get lost. When that happens, there's a wait for replacement parts, or the need to have multiple spares that have to be launched. The ability to conduct 3-D printing in space could change all of that.
First 3D Printer Launch by NASA on 2014


3D printers use a technique called extrusion additive manufacturing to build objects layer by layer out of polymers, metals, composites and other materials. 
For the first 3-D printer in space test slated for fall 2014, NASA had more than a dozen machines to choose from, ranging from $300 desktop models to $500,000 warehouse builders.
Made in Space's machine is slated to launch toward the orbiting lab in August 2014, in a collaboration with NASA's Marshall Space Flight Center called the 3D Printing in Zero G Experiment.
"The 3D printing experiment with NASA is a step towards the future. The ability to 3D print parts and tools on-demand greatly increases the reliability and safety of space missions while also dropping the cost by orders of magnitude," said Kemmer.
"The 3D printer we're developing for the ISS is all about enabling astronauts today to be less dependent on Earth," Noah Paul-Gin, Made in Space's microgravity experiment lead, said in a statement.
"Imagine an astronaut needing to make a life-or-death repair on the International Space Station," said Aaron Kemmer, the company's chief executive.
"Rather than hoping that the necessary parts and tools are on the station already, what if the parts could be 3D printed when they needed them?"
In 1970, Apollo 13 astronauts had to cobble together a home-made carbon dioxide filter using a plastic bag, a manual cover and gaffer tape.
"If you want to be adaptable, you have to be able to design and manufacture on the fly, and that's where 3D printing in space comes in,'' said Dave Korsmeyer, director of engineering at Nasa's Ames Research Center.A 3D printer might have solved the problem in minutes and helped them reach the Moon.
Nasa is also experimenting with 3D printing small satellites that could be launched from the International Space Station and then transmit data to earth.

How digestive system works?

Digestion is the breaking down of food mechanically and chemically with the help of enzymes into smaller particles.In the digestion process,the food is broken down and the nutrients in the food are absorbed and used by our body.

The digestive system is made up of the alimentary canal (also called the digestive tract)and other abdominal organs that runs from the mouth to the anus.

Our body uses food as a fuel to provide energy for work and also for our growth.

When you eat, when you smell a tasty food, see it, or think about it,enzymes released into your mouth and starts the process of digestion.

Enzymes helps to breakdown the food quickly and easily.

Mouth

Your teeth breaks the food  into small pieces to makes it easy to swallow.Amylase enzymes breakdown the starch into sugars in the mouth and small intestine.The saliva(contains amylase) produced by the salivary glands lubricates and break down the food quickly.The tongue helps to swallow the chewed-up food called bolus by pushing it down to the back of your throat(or pharynx).

Don't Gulp down your food!


Properly chew your food and then swallow it.

If you gulp and don't chew properly,your food may get stuck in your esophagus (otherwise called gullet) and blocks your lung airways and causes choking hazards.   


Don't eat fast in a hurry and be the victim of digestive problems.Eating fast makes you to eat a lot and can make you obese.

Do you know why you start coughing while you eat sometimes?

Windpipe allows air to come in and out of the body is also located at the back of your throat.


When you swallow  food or liquids, a special flap called the epiglottis flops down over the opening of your windpipe to make sure the food enters the esophagus and not the windpipe.

When you drink too fast, the epiglottis won't have enough time to flop down,so the food enters the windpipe in a wrong way and you start coughing involuntarily to clear your windpipe.

The swallowed food  passes through the following organs:


  1. Esophagus or gullet
  2. Stomach
  3. Small intestine
  4. Liver
  5. Large intestine
  6. Anus

1.Esophagus or gullet
 From the throat,food enters the pipe(10 inches) called esophagus.

esophagus/gullet = Food pipe/ food tube

The strong muscles surrounding the esophagus using wave-like muscle movement(peristalsis)  pushes the food down to the stomach in two to three seconds.Even when we are upside-down,we are able to eat or drink only because of this muscle movement.

2. Stomach

Stomach is a sack-like and "J" shaped organ which stores the food received from the esophagus.Your stomach is located just below the heart.

Protease enzymes breakdown the proteins into amino acids in the stomach and small intestine.Digestion of proteins in the stomach is helped by hydrochloric acid.

The walls of the stomach contain strong muscles and gastric juices.The strong muscles of the stomach churns and grind up the food into tiny particles. In addition to breaking down food,the gastric juice(mainly hydrochloric acid) produced in the stomach,also helps to kill many harmful microorganisms that might have been swallowed along with the food.

Your stomach moves along with gastric juice and breaks down the food into a thick liquid paste called chyme.

3.Small Intestine

From the stomach, food(chyme) enters the duodenum, the first part of the small intestine.Followed by the jejunum and then enters the ileum (the final part of the small intestine).

The small intestine break down the food and helps in the absorption of nutrients with the help of pancreas, liver and gall bladder.

Lipase enzymes breakdown the fats and oils into fatty acids and glycerol in the small intestine.Digestion of fat in the small intestine is helped by bile, made in the liver.

95% of absorption of nutrients occurs in the small intestine.

* The pancreas makes the enzymes that digest proteins, carbohydrates and fats and sends it  to the small intestine through a tube called the pancreatic duct.

* The liver secretes bile.

*The gall bladder injects bile in the small intestine(duodenum) to digest the fat in the food.Bile secreted by the liver is stored in the gall bladder until when it is needed by the body for digestion.

 When the chyme is fully digested,it becomes a very thin, watery mixture and the  nutrients( vitamins, minerals, proteins, carbohydrates and fats )in it are absorbed by millions of tiny finger-like objects called villi and are sent into your bloodstream where the nutrients can travel to all your body cells.

4.Liver

Before going to the rest of the body, the nutrient-rich blood comes to the liver for processing.The liver is body's central processing system and the largest solid organ in the body.It converts harmful substances to less toxic forms and regulates the amount of blood in the body.Liver cleans your blood and stores energy sources like fat and sugar as reserve,but sends proteins out into the bloodstream to supply the rest of the body.

Waste stuff in the blood which  your body doesn't need  are carried by bile back into the intestine and are sent out of the body as stool.During processing,some waste goes through your blood to your kidneys and will be out as pee.


5.Large Intestine

From the small intestine,the watery mixture which can't be used by the body(ie.,undigested food mainly fibre) comes to the large intestine.

The appendix is an organ connected to the cecum.(not does anything in digestive system)

The Large intestine consist of three parts - cecum,colon and rectum

* The first part of the large intestine is called the cecum with very fluid contents.

* After that when the watery mixture passes through the colon in the large intestine,water and minerals are absorbed and it become solid.This solid food waste called poo is pushed to the rectum.

* Rectum - stores the poo until you have a bowel motion.If the poo stays here for more than 3 days,it will be dried.This is called as getting constipated.
When you have a bowel movement,the muscles around the rectum pushes the poo out through the anus.


6.Anus

Anus is the exit point of the digestive tract where poo leaves your body.


 digestive system

Google Offers - Discover,Save and Redeem

"Google Offers" is a easy and convenient way to get savings on products and services.

"While browsing the web and using other Google products from your computer,tablet or phone,now you can easily discover great offers from the top brands and local businesses."

Now you can also easily discover nearby offers and redeem it with new Google Maps app.While surfing on Google,or reading your favorite websites,as ads you can see relevant offers displayed.

And if you want to get the latest offers from some of your favorite brands, you can follow them on Google+ to see all of the offers they share directly on your stream. You can save an offer directly from the post or share it with your circles.

If you find an offer you want,save them instantly to your Google account, and redeem easily with your phone when you visit the store.
 Google Offers

You no need to hassle with clipping paper coupons, purchasing vouchers in advance, or worry about  problem of forgetting your coupons at home.

With "Google Offers", enjoy hassle free shopping.

 It's very easy.Just show the offer on your phone screen to redeem.

To download the Google Offers app, visit Google Play for Android or the App Store for iOS. You can also learn more about Offers at google.com/offers/consumer. Happy saving!

15 Must-Know Facts about Turtle



1.Turtles are reptiles.They lay eggs.
2.Turtles don't have teeth.They have rigid beaks and jaws for cutting and chewing food.
3.Turtles don't have outer ears.They have only inner ears.
4.Turtle have four flipper-like legs which helps them to swim.
5.They have nose and nostril like us to breathe.
6.Turtles are old on earth as dinosaurs.A turtle can live for more than hundred years.
7.Turtle body is covered and protected by a outer hard shell called carapace.Bony plate on a turtle shell is called scute.Its bottom shell called plastron. Its upper and lower shell are connected by a bridge so a turtle's shell cannot be detached from its body.
8.Turtles are cold-blooded like other reptiles.
9.Turtle eats plants,fish and insects.
10.Male turtles are slightly larger than females and have a longer tail.
11.Turtle move slowly but they swim fastly. Turtle lives in oceans all over the world.They can swim and hundreds and thousands of mile.
12.Turtles can tuck their head,tail and legs inside its shell.
Turtle Drawing for Kids
13.Do you know the difference between Turtle and Tortoise?
Turtle spend most of the time in water.Tortoise spend most of their time on land.
14.A group of turtles is called a bale.
15.As a turtle grow,its shell get covered in algae.Fishes eat the algae as food and helps to clean the turtle's shell.

16 Must Read Cow Facts and Cow Drawing for Kids

  1. Cow is a domestic(warm-blooded) animal.
  2. Cow is a mammal.It gives birth to young(both male and female) ones commonly called as calves(calf).
  3. Cow is referred as a cattle.A group of cattle is called as a herd.
  4. A young female is called as heifer.
  5. A young male is called as bull calf.
  6. An adult female is called as cow.
  7. An adult male is called as bull.
  8. Meat from adult cattle is called beef.
  9. Meat from calves is called veal.
  10. Cattle are herbivores and they eat grass,hay,corn,wheat etc.,
  11. Cattle are raised as livestock for making profit.A livestock are domesticated animals raised in an agricultural setting to produce commodities such as milk and other dairy products,for its meat,for making leather, and also for using it as labor.Cow Drawing for Kids
  12. Cattle used as a draft animal/draught animal is called as ox(oxen).A draft animal/draught animal is used for pulling heavy loads like carts and for ploughing etc.,
  13. Cattle can be horned,dehorned,scurred or polled.
  14. Have you noted the hoof of a cow?The horny part of the foot is called as hoof.
  15. Have you noted the muzzle of a cow?The forward projecting part of the face, including the nose and mouth is called muzzle.
  16. Cattle are red green color blind.



Top 10 Best Laptops 2013

Here is the list of Top 10 Best Laptops of 2013 as published in pcmag.
Acer Aspire S7-392-6411

  1. Acer Aspire S7-392-6411
  2. Acer C7 Chromebook (C710-2055)
  3. Apple MacBook Air 13-inch (Mid 2013)
  4. Asus VivoBook V551LB-DB71T
  5. Dell Inspiron 15 (I15RV-6190 BLK)
  6. Dell Inspiron 17-3721
  7. Lenovo G580
  8. Lenovo ThinkPad Edge E431
  9. Microsoft Surface Windows 8 Pro
  10. Razer Blade (2013)Check more details

Bird Drawing for Kids

Bird Drawing for Kids
How to draw a bird for kids?
Parts of a birds for kids.

Google's New Android Device Manager

Find Your Android - With Google's Android Device Manager you can track your lost phone
If you lose your Android device associated with your Google Account, you can use Google's Android Device Manager to remotely locate and factory reset your phone or tablet.
When your device is located, its approximate location is indicated by a blue circle on the map. The device manager also displays the name of the place where the device is located, the time it was located, and when it was last used.

If you have misplaced your phone somewhere around at workplace or home,you can easily locate it with Android Device Manager.It helps to ring your device at full volume for 5 minutes - even if it’s set to silent or vibrate.

If your phone is lost,you can perform a factory reset, which permanently deletes all of your data and keeps you safe from the stranger.

Sign in to your Google Account on android.com/devicemanager. And Turn on Android Device Manager to enabe this function.Note:Android Device Manager won’t work for devices that are offline or powered off.

 Google's Android Device Manager is absolutely free and a worth to use for every Android User.



android-device-manager.png

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