Yes, the GoPro Hero 4 Black Edition is waterproof. It is designed to be waterproof up to 131 feet (40 meters) without the need for an additional housing. This makes it suitable for capturing underwater footage and photos without the risk of water damage to the camera. However, it is important to ensure that all the camera's doors are securely closed before submerging it in water. **

Yes, these are pigment disorders. Pigment disorders refer to conditions that affect the color of the skin, hair, or eyes. In this case, the examples provided - albinism, vitiligo, and melasma - are all pigment disorders that result in abnormal pigmentation of the skin. Albinism is characterized by a lack of melanin production, vitiligo causes patches of depigmented skin, and melasma leads to dark patches on the skin. **

Yes, there are several good black waterproof paints available on the market. One popular option is Rust-Oleum's Stops Rust Protective Enamel, which comes in a variety of black shades and is designed to provide long-lasting protection against the elements. Another option is Krylon's Fusion All-In-One Spray Paint, which is specifically formulated to bond to plastic, metal, and other surfaces while providing a durable, waterproof finish. Both of these paints are widely available and have received positive reviews for their waterproofing capabilities. **

I recommend the Maybelline New York Eye Studio Master Precise All Day Liquid Eyeliner. It is a waterproof formula that glides on smoothly and stays put all day. The fine tip allows for precise application, making it easy to create a variety of looks. Plus, it is affordable and easily accessible at most drugstores. **

Yes, vitiligo is a pigment disorder that causes the skin to lose its color in patches. It occurs when the cells that produce melanin, the pigment that gives skin its color, are destroyed. This results in white patches on the skin that can vary in size and location. **

A pigment disorder is a condition that affects the color of the skin, hair, or eyes. It can result in an abnormal production or distribution of melanin, the pigment that gives color to these body parts. This can lead to conditions such as albinism, vitiligo, or hyperpigmentation. Pigment disorders can be genetic or acquired, and they can have a significant impact on a person's appearance and self-esteem. **

The pigment in carrots is called beta-carotene. Beta-carotene is a type of carotenoid, which is a group of pigments that give fruits and vegetables their vibrant colors. In carrots, beta-carotene is responsible for their bright orange color. It is also a precursor to vitamin A, which is important for maintaining healthy vision, skin, and immune function. **

Visual pigments are proteins found in the rod and cone cells of the retina that are responsible for capturing light and initiating the process of vision. When light enters the eye and strikes a visual pigment molecule, it causes a chemical reaction that leads to the activation of the pigment. This activation triggers a series of events that ultimately result in the generation of electrical signals that are sent to the brain for processing. Different visual pigments are sensitive to different wavelengths of light, allowing us to perceive a wide range of colors. **