Why be lost when you can have a adventure waiting!

By a GPS robot ha ha ha!!!!!

Intro

 Hey! Stop getting lost... DonŐt you hate it when you were going on an adventure and you get lost?  And when you try to get out you get even more lost?! Well if you had a GPS you would always have a happy ending to a great adventure. This will tell you the history of GPS, interesting facts about GPS and some pretty cool devices! 

Wheelchair

What does GPS wheelchair even do? According to forbes.com. A GPS wheelchair can do many cool things.  Most importantly, it gets signals from satellites to figure out where it is, and then it sends the location to the hospital authorities.  This way, if a hospital patient is lost (or trying to RUN AWAY), then the hospital authorities can take action.  Interestingly, this wheelchair also has "off road" capabilities.

Personal locator

       When would any one like a GPS? According to forbes.com.  There are several situations when you would REALLY like to have a GPS personal locator.  If you are a hiker or a skier, you want one.  Because, for example, if you get lost hiking, you would like search-and-rescue to be able to find you.  Or, for example, if you were caught in an avalanche, wouldn't it be nice if your personal locator sent signals to someone who could come and dig you out.

 

Child Mapper

       What does GPS child Mapper do? According to forbes.com.  A GPS child mapper is meant for parents who can't stand to "not know" where their kids are.  The child mapper works like this.  A child's cell phone has a GPS locator in it.  The parent programs an area into their cell phone.  If the child leaves the area, the child's cell phone calls the parent's cell phone to "tattle-tale" that the child has left the area.

GPS satellites

        How many GPS satellites are there? According to forbes.com, there are 27 GPS satellites flying around the earth.  There are 24 that work, and there are 3 extra in case we need them.  I think thats interesting.

How fast are GPS satellites? According to forbes.com. GPS satellites are so fast, they go around the whole world twice every single day.

 

 

 

GPS inventor

        Who invented the GPS? According to forbes.com.  The United States military (Army, Navy, etc.) started the GPS satellite network.  They invented it to help the military know where they were or where they were going.  Today, anyone can use the GPS satellites.

 

GPS satellites weight

       `How heavy are the GPS satellites? According to forbes.com.  Each of these 3,000- to 4,000-pound solar-powered satellites circles the globe at about 12,000 miles (19,300 km), making two complete rotations every day. The orbits are arranged so that at any time, anywhere on Earth, there are at least four satellites "visible" in the sky. GPS satellites are about 3,500 pounds.

 

       GPS works

       How does GPS work? According to forbes.com. GPS works by locating 4 (or more) satellites in the sky.  First, it figures out how far away it is from each satellite.  Then, it uses a fancy math called trilateration to figure out exactly where on earth it is.

 

Trilateration

       How does trilateration work? According to forbes.com.  Trilateration works by using imaginary spheres.  Like, if you knew you were 10 miles away from a satellite (we'll call  "A") and 15 miles away from another satellite (we'll call "B"), then the imaginary spheres would overlap.  Then if you had just one more satellite (we'll call "C"), you could figure out exactly where you were.

 

Criminal tracker

       What is a criminal tracker? According to forbes.com. Trilateration works by using imaginary spheres.  Like, if you knew you were 10 miles away from a satellite (we'll call  "A") and 15 miles away from another satellite (we'll call "B"), then the imaginary spheres would overlap.  Then if you had just one more satellite (we'll call "C"), you could figure out exactly where you were.

 

Conclusion

So of you were thinking the GPS was strange or stuped hopefully this changed your mind or if you did not understand the GPS I hope you have a better idea about it thank you for reading. Oh and throw away your map and get a GPS!!!!!!!!!!!!!!!!!JJJJJ