Add project 'Heigh-Calculator'

Projects/2-Intermediate/Height-Calculator.md

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+# Mobile Height Calculator
+
+**Tier:** 2-Intermediate
+
+A unique application that facilitates the estimation of object heights utilizing a user-input distance and an on-screen crosshair to gauge and calculate the relative height from the user's standpoint.
+
+## User Stories
+
+-   [ ] **Input Distance:** User can input the distance to the object using an input field.
+-   [ ] **Utilize Crosshair:** User can activate a virtual "crosshair" or sight within the application.
+-   [ ] **View Height:** User can view the calculated height displayed in an output field.
+-   [ ] **Unit Toggle:** User can toggle units of measurement for input distance and calculated height (e.g., meters, feet).
+
+## Bonus features
+
+-   [ ] **Tutorial:** User can access a tutorial or guide on how to effectively use the application.
+
+## Useful links and resources
+
+-   [Accelerometer and Gyroscope Using JavaScript](https://www.html5rocks.com/en/tutorials/device/orientation/)
+-   [Using Device Orientation in Web Development](https://developer.mozilla.org/en-US/docs/Web/API/Detecting_device_orientation)
+-   [Getting Started with Canvas](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Basic_usage)
+-   [Handling User Input on Mobile Web](https://developers.google.com/web/fundamentals/input/form)
+
+## Example projects
+
+-   [Clinometer + bubble level](https://play.google.com/store/apps/details?id=com.plaincode.clinometer&hl=en&gl=US) (An Android app that uses device orientation for various measurement tasks)
+-   [EasyMeasure](https://apps.apple.com/us/app/easymeasure/id349530105) (An app that estimates distance and height using camera perspective)
+
+**Note:** The Mobile Height Calculator's accuracy is influenced by device capabilities and user input precision. Users should be reminded that results are estimates and should not replace precise measurement tools.