Optical illusions and brain teasers are a fun way to challenge yourself and keep your mind sharp. Many people see an image and have to take a second look to figure out what they really saw. This brain teaser has cute dolphins that will definitely make you think twice!
How many dolphins can you find in the picture? There are actually 17 dolphins! Some are easy to spot, while others are more hidden. Some are even blended together. In the first row, there are 5 dolphins. The second and third rows each have 6 dolphins.
At first, it might look like there are only a few dolphins. But after a few seconds, your eyes and brain start to notice more dolphins, and eventually, you can see all 17 of them. It’s actually very common for people to miss some dolphins when they first look at the picture. If you didn’t spot all of them, don’t worry—there are more pictures to try!
Why is that?
The Answer is:
If a vehicle drives in a straight line at high speed for a long time, it will cause the driver’s vision to become fatigued, attention to be distracted, and even lead to drowsiness, which is unsafe. Therefore, driving on a road that changes from straight to curved will stimulate the driver’s concentration better.
Not to mention, builders also consider that a powerful vehicle can easily climb a steep road, but a heavily loaded truck or a passenger vehicle cannot. Moreover, a road with a straight, steep incline is extremely dangerous when descending, as it is difficult to control speed. A steep incline can also affect the driver’s visibility, making it hard to see ahead.
When designing curves, builders try to increase the curve radius and reduce centrifugal force, allowing vehicles to handle the turn more easily even at high speeds.
In summary, while winding roads may take more time to travel, they ensure greater safety. Driving on a steep, straight road is akin to playing a dangerous game that most people wouldn’t want to try.
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