No, a white person cannot tan themselves black. Tanning is the process of the skin producing more melanin in response to UV exposure, which results in a darker skin tone. However, the amount of melanin produced is determined by genetics, and it is not possible for a white person to produce enough melanin to tan themselves black. Additionally, attempting to artificially darken the skin in this way would be culturally insensitive and inappropriate. **

Arms don't tan because the skin on the arms contains fewer melanocytes, which are the cells that produce melanin, the pigment responsible for tanning. Instead, arms may develop freckles and white spots when exposed to the sun. Freckles are small, concentrated areas of increased melanin production, while white spots may be areas where the skin has lost its ability to produce melanin due to sun damage. This uneven distribution of melanin production in the skin of the arms results in the development of freckles and white spots rather than an overall tan. **

Yes, you can still get a tan through a white t-shirt. While clothing can provide some protection from the sun's rays, it is not completely effective at blocking them. The amount of protection provided by a white t-shirt is relatively low, so some UV rays can still penetrate the fabric and reach your skin, allowing you to tan. However, it is important to note that wearing sunscreen and taking other sun protection measures is still necessary to prevent sunburn and skin damage. **

To remove tan stains from a white top, you can try using a mixture of equal parts lemon juice and water. Apply the mixture to the stained area and let it sit for a few minutes before rinsing with cold water. You can also try using a stain remover specifically designed for removing tan or self-tanner stains. For tougher stains, you may need to soak the top in a mixture of water and oxygen-based bleach before washing it as usual. Always check the care label of the garment before attempting any stain removal method. **

To remove the white border around black elements, one can use image editing software such as Photoshop or GIMP. First, select the black elements using the magic wand tool or the selection tool. Then, refine the selection to ensure that only the black elements are selected. Next, invert the selection so that the white border is selected instead. Finally, delete or fill the selected white border with black color to remove it from the image. **

The white stripes on dark elements of a monitor are often a result of a phenomenon called "screen tearing." This occurs when the monitor's refresh rate does not match the frame rate of the content being displayed, causing the image to appear torn or have white stripes. It can also be a result of a mismatch between the graphics card's output and the monitor's refresh rate. Adjusting the monitor's settings or using a graphics card with adaptive sync technology can help reduce or eliminate this issue. **

Mobile TAN (mTAN) and Smart TAN are both methods of generating one-time passwords for online banking transactions. The main difference between the two is the method of receiving the TAN. With Mobile TAN, the one-time password is sent to the user's mobile phone via SMS. On the other hand, Smart TAN uses a dedicated device, often a small card reader or a smartphone app, to generate the TAN. While Mobile TAN relies on the user's mobile phone and network coverage, Smart TAN requires the use of a separate device, providing an extra layer of security. **

There could be several reasons why you are not getting tan even though you have fair skin. It is possible that you have a high level of natural sun protection due to the amount of melanin in your skin, which can make it harder for you to tan. Additionally, you may not be spending enough time in the sun or using enough sunscreen, both of which can inhibit the tanning process. It is also important to remember that everyone's skin reacts differently to sun exposure, so it may just take more time for you to develop a tan compared to others. **