2024. 7. 5. 17:49ㆍ카테고리 없음
We spend a lot of time looking at screens these days. Computers, smartphones, and televisions have all become a big part of our lives; they're how we get a lot of our news, use social media, watch movies, and much more. Virtual reality (VR) and augmented reality (AR) are two technologies that are changing the way we use screens, creating new and exciting interactive experiences.
Virtual reality uses a headset to place you in a computer-generated world that you can explore. Augmented reality, on the other hand, is a bit different. Instead of transporting you to a virtual world, it takes digital images and layers them on the real world around you through the use of either a clear visor or smartphone.
With virtual reality, you could explore an underwater environment. With augmented reality, you could see fish swimming through the world around you.
Watch the video below to learn about vir
Virtual reality
Virtual reality immerses you in a virtual world through the use of a headset with some type of screen displaying a virtual environment. These headsets also use a technology called head tracking, which allows you to look around the environment by physically moving your head. The display will follow whichever direction you move, giving you a 360-degree view of the virtual environment.
Types of VR devices
At the moment, there are two major types of headsets. Both have their pros and cons, which you'll want to consider if you're looking to purchase one.
The first type has a screen built in to the headset. These devices connect to a computer and require a pretty powerful system to operate smoothly. They have great graphics and perform well, but they're also pretty expensive. A few popular examples of these include the Oculus Rift, the Vive, and the PlayStation VR, which connects to the PlayStation 4 game console.
Some of these devices come with handheld controllers that track your hands' movements as well, providing for a more interactive experience.
The other type of headset houses your phone and uses its screen as the display. These don't require a computer and run completely off of apps on your smartphone. The graphics and performance levels on these headsets aren't quite as good as those with a built-in screen, but they do tend to be much cheaper. Some popular examples include Google Cardboard and the Gear VR.
Augmented reality
Augmented reality allows you to see the world around you with digital images layered on top of it. There are currently a couple of AR headsets available, including the Microsoft HoloLens and the Magic Leap. However, they are currently more expensive than VR headsets, and are marketed primarily to businesses.
Augmented reality can also be used on devices like smartphones and laptops without the use of a headset. There are a variety of apps that use AR, including some that allow you to translate text using your camera, identify stars in the sky, and even see how your garden would look with different plants. You may have even previously used AR without realizing it, while playing a game like Pokemon Go or using filters on Snapchat.
Watch the following video to see how augmented reality could be applied in the near future.
tual reality and augmented reality.
Both VR and AR technologies are growing at a pretty rapid pace. Many experts predict that they'll continue to become more and more popular in the near future. As technology becomes more advanced, it'll be exciting to see how they'll be applied to both business and everyday life!
Lesson 2: What is a Drone?
What is a drone?
Over the past few years, drones have become extremely popular. You may have seen them online, at department stores, or even at the grocery store. We’d like to give you a brief overview to show you what they are and why they are so popular.
Drone is a broad term that can refer to any unmanned aircraft. However, it usually refers to a multirotor. A multirotor has three or more propellers that can be used to hover or fly in any direction. The most common type is a quadcopter, which has four propellers (shown below).
The term can also refer to military drones, which are usually large, unmanned airplanes. However, this lesson will focus on consumer drones.
Drones have some cool features
Why are they so popular? Well, in addition to flying, they have some other cool features:
- Many drones have cameras, which allow you to see things from the drone’s perspective. The camera can also record videos, so you can share your flying adventures with other people.
- Every drone has a built-in flight controller that keeps it stable. If a gust of wind tips it over, the flight controller will instantly adjust the propeller speeds to re-level it. This makes it easier for beginners to learn to fly.
- Some drones have additional smart features that let them do cool things like fly autonomously (more on that later).
They come in all sizes (and price ranges)
There are countless drones to choose from, and they come in a range of sizes. The smallest ones can fit in the palm of your hand, and some cost less than $20. However, many of these do not include cameras.
Larger drones usually have high-quality cameras, and they may have other advanced features. Companies like DJI, Yuneec, and Parrot offer many options in the $100 to $500 range. High-end drones can cost thousands of dollars.
They have revolutionized aerial videos
Traditionally, aerial videos required a full-sized airplane or helicopter. Drones can now do many of the same things for much cheaper. As a result, YouTube is filled with gorgeous aerial videos taken by both pros and amateurs.
The video below was recorded with a drone. Keep in mind that not all videos will look this good. It requires a higher-end drone, as well as a scenic location!
Some drones can “think” for themselves
Not all drones require a pilot. Many of them can fly themselves, guided by GPS, and some can even avoid obstacles. This is known as autonomy: In other words, the drone can make decisions on its own without any human input.
Some drones have a follow-me mode, which is used by many action sports enthusiasts. In this mode, the drone will follow you at a safe distance and handle all of the camerawork, as in the video below.