Yes, the proverb "Even a blind chicken finds a grain of corn sometimes" does exist. This proverb is used to convey the idea that even someone who is not very skilled or perceptive can still have moments of success or good fortune. It emphasizes the element of luck or chance in achieving success, regardless of one's abilities or circumstances. The proverb is often used to encourage perseverance and to remind people that everyone has the potential for success, even if it may not seem likely at first. **

Yes, the brightness is adjustable on most devices such as smartphones, tablets, and computers. You can usually adjust the brightness level in the settings or control panel of the device. This allows you to customize the brightness to your preference, whether you need it brighter for better visibility in bright environments or dimmer for reduced eye strain in low-light conditions. **

Extended use of smartphones and laptops can cause digital eye strain, also known as computer vision syndrome, which can lead to symptoms like dry eyes, headaches, and blurred vision. However, there is no evidence to suggest that prolonged use of these devices can directly cause blindness. To prevent eye strain, it is recommended to take breaks, adjust screen brightness, and practice good ergonomics while using smartphones and laptops. If experiencing persistent eye discomfort, it is important to consult an eye care professional for proper evaluation and treatment. **

Smartphones emit blue light, which has been linked to eye strain and disrupted sleep patterns. Prolonged exposure to blue light from smartphones can cause digital eye strain, but it does not make you blind. However, it is important to take breaks from looking at screens, use blue light filters, and practice good eye care habits to minimize the potential negative effects of smartphone use on your eyes. **

Yes, the oven is not adjustable. The temperature settings are fixed and cannot be changed manually. The oven is designed to operate at specific temperature levels for different cooking functions. **

Yes, an adjustable screen can be important for various reasons. It allows users to customize the screen position to their preferred height and angle, reducing strain on the neck and eyes. It also helps in creating a more ergonomic workspace, promoting better posture and comfort during long hours of work. Additionally, an adjustable screen can accommodate different users with varying height preferences, making it a versatile option for shared workspaces. **

Yes, the brightness is adjustable. You can easily adjust the brightness level according to your preference using the settings on the device. This feature allows you to customize the brightness to suit your needs, whether you prefer a brighter display during the day or a dimmer screen at night. **

The cheapest option among roller blind, pleated blind, and venetian blind can vary depending on the specific brand, material, and size. However, in general, roller blinds tend to be the most cost-effective option. They are often made with simple materials and construction, making them more affordable compared to pleated or venetian blinds. It's important to compare prices and quality to find the best option for your budget and needs. **