e lived in. See the results on a Google Map. Using the calculator FAQ
Find your halfway point
Here are a few of the many possible uses for the calculator:
Find your personal center of gravity. Select all cities or addresses where you have lived, then view those places on a map along with a marker pointing at your exact average location.
Find the midpoint of a flight between two cities. For example, the point that lies halfway between Chicago and Los Angeles is located 22 miles (35 km) southwest of Limon, Colorado.
Trip planning--find a central hub for places you are going to visit.
Find a center location for a convention or family reunion that will be fair and equitable for those who are traveling.
Find a central place for a new business or facility that will serve surrounding population centers.
Midpoint locations can be visited using GPS devices. Please read these GPS guidelines before you start your trip.
Using the midpoint calculator
Add each of your addresses or other locations to the map. See Help for detailed instructions. Use the 'Address' option to enter your addresses or other locations one by one. 'Multiple input' lets you copy and paste a list of addresses from a spreadsheet or other program.
350 Fifth Ave, New York, NY
10 Downing St, London, UK
Locations can also be specified by latitude and longitude using one of the allowed formats.
Weight by time and other weight
You can use 'Weight by time' to weight your places for the personal center of gravity calculation. Enter the amount of time you have spent in each place. If you leave the years, months, and days boxes blank then all of your places will be weighted equally for the calculation. As an alternative, you can use 'Other weight' to enter population or other weighting factors for each location.
Three different calculation methods are available for calculating the midpoint, each of which is useful in different situations. There are reasons for choosing one method over another.
How the calculator works
The calculator calculates the geographic midpoint based on the assumption of a spherical earth. The geographic midpoint for any two points on the earth's surface is located halfway along the great circle route which is the shortest route that runs between both points, and would be like stretching a string between the two points on a world globe then finding the middle of the string. The geographic midpoint for three or more points on the earth's surface is the center of gravity (center of mass or average location) for all of the points.
To help visualize the concept of center of gravity, imagine that a small weight is positioned at the location of various cities on a world globe. Now imagine that the globe is allowed to rotate freely until the most heavily weighted part of the globe is pulled by gravity until it is facing downward. The lowest (and heaviest) part of the globe is the center of gravity and the geographic midpoint for all of the weighted cities. See Calculation methods for a detailed description.
A lot of distortion occurs when the earth is projected onto a flat surface, for instance, a map using the Mercator Projection. Because of this distortion, if you plot two points on a flat map along with the corresponding calculated midpoint, you will find that the midpoint is often far out of alignment with the two points. This can be easily illustrated by an example. If you place a ruler on a flat wall map between Phoenix, Arizona and Kabul, Afghanistan, the midpoint for the two cities will appear to be in the Atlantic Ocean a few hundred miles off the tip of Portugal. However, the Geographic Midpoint Calculator gives the true midpoint coordinates of latitude 88.9300 North longitude 171.1427 West, which is 72 miles (116 km) from the North Pole. You can verify this by stretching a string between the two cities on a world globe.
In general, a true midpoint in the Northern Hemisphere will be farther north than you might expect it to be when viewed on a flat map, and conversely, a true midpoint in the Southern Hemisphere will be farther south than you might expect it to be. For cities that are close together this apparent difference between a spherical earth and a flat map is only slight, but the difference can be great for cities with a lot of longitude separation, such as cities on different continents. Also, there tends to be more distortion in the polar regions than near the equator. So if your calculated midpoint is farther north than you expect it to be, this is the explanation. Usually, if you take a look at a world globe it will begin to make sense.
u do not have to pay for it, you can have 30 or so people chatting simultaneously and it is even perfect for streaming live video conferences. There are many values to Google Hangouts which happen to be quite practical for professional land surveyors and after this quick tutorial I will provide a few ideas on how you can use to to improve your business, network online with your fellow members and attend surveying conferences from the comfort of your living room.
Google Apps chat, voice, and video are all great features... but now let us introduce you to Google+ Hangouts. Google+ Hangouts are great alternatives to getting face time. In the business world, Google+ Hangouts allows you to quickly establish a video conference with colleagues and coworkers from all over. Chat, voice, and video come together in the harmonious blend that is Google+ Hangout. Let us help you get started with your first hangout or show you some features you didn't know were there!
Features Of Google+ Hangouts
Easily accessible in the Google+ environment
Have 1:1 session or a hangout with multiple people
Dial in individuals by his or her phone number with Hangouts with extras
Group Video Chat
Did we mention is was FREE?
How To Start A Hangout
While signed into your Google+ account, you will find the option to start a Hangout on the right side of your screen.
Selecting the 'start a hangout' button will open a new window where you can invite others and begin your hangout. You can easily add groups of people by inviting circles rather than individuals.
In the new window, you can now select individuals or circles of people to invite to your hangout. Once you enter individuals or circles of people you wish to hangout with, you can now select the green 'hang out' button. Don't forget to turn on your camera and microphone!
At the bottom of the window, you will notice the option to Try Hangouts with extras. This option is similar to the original Hangout with some added features that include:
*Photo from Google+ Help Page
Working in the Hangout
Now that you have started a hangout, here are some pointers for the different options and settings. In the top left of the Hangout window, you will notice the buttons 'chat, invite, screenshare, YouTube'. Each buttons is useful while conducting a hangout.
Chat: A group chat for all individuals in the hangout
Invite: Invite more people to your current hangout
Screenshare: Share your screen so you can give demonstrations to your peers/colleagues.
YouTube: Get a group together to watch a video on YouTube. Either an informational video or the latest viral video.
Aside from these feature, the button on the right side of your screen will allow you to control your own interaction in the hangout.
These settings will allow you to mute your microphone, turn off your camera, manipulate your general settings under the gear, or exit the hangout entirely.
Although Hangouts are very cool, here is a scenario you may find useful in your business practices. For this scenario, let's assume Brian, Matt, and Tina all work for the same surveying company. Currently, Brian, Matt, and Tina are working remotely in different states. Brian needs to have a meeting with Matt and Tina to discuss a botched survey, show them an informational video, and answer questions they may have. Brian does not want to wait until the next time he is able to see them because he hope to get this information immediately. Brian starts up a Google+ Hangout so he can video conference with Matt and Tina about this terrible survey and discuss what needs to happen next. They all watch an informational video on YouTube and Brian is able to answer questions on the side in the group chat. Then, Brian shares his screen to review documentation while still being able to see Matt and Tina. This survey was easily fixed to Matt and Tina while they were remote.
The same type of scenario is possible for Chapter Meetings and Surveyor Conferences. Now everyone can attend and vote for new motions on the floor!
Google+ Hangouts are perfect for those times you are trying to reach someone that is working remotely or you are just trying to get everyone on the same page. Here is a list of of examples the Google+ Hangouts can help you and your business:
Having a sick day and you don't want the project to steer off course? Use Google+ Hangout from home.
Have to drive 45 minutes through traffic to get to a 30 minute meeting? Use Google+ Hangouts from your office.
Working in the field and need to touch base with your team? Use Google+ Hangouts remotely
Does you family live far away? Have a family reunion in Google+ Hangouts.
On Vacation and forgot to cancel that meeting? Do it in a Google+ Hangout.
Going on an extended business trip and miss your family and dog? Say hello in a Google+ Hangout.
It's easy to see how Google+ Hangouts can help you. Be sure to leave us some comments on your experience with Google+ Hangouts.