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**Why People Are Hanging Bags of Water Above Their Doors to Deter Bugs: A Simple and Surprisingly Effective Trick**
While it may seem like an old wives’ tale, hanging bags of water above doors is a surprisingly effective method for keeping pests at bay. Curious about how this works and why people swear by it? Let’s dive into this quirky yet practical home remedy.
### The Science Behind the Water Bags
1. **Light Reflection and Refraction**:
When sunlight or indoor light hits the water-filled bags, it causes the light to reflect and refract. The movement of the light can create confusing and disorienting patterns for flying insects like flies and mosquitoes. These bugs rely heavily on their vision to navigate, and the dazzling light patterns make it difficult for them to land or approach the area. It’s like a visual barrier that prevents them from coming any closer.
2. **Distorted Vision**:
Flies have compound eyes that detect movement and light from multiple angles. When light passes through the water-filled bags, it creates a sort of optical illusion. This can confuse insects, making it harder for them to target their landing spots. Essentially, they see distorted, blurry images, which can cause them to avoid entering the area altogether.