The sun is directly overhead in Lisbon at solar noon, which typically occurs around 1:15 PM local time. This is when the sun reaches its highest point in the sky for the day. The exact time can vary slightly throughout the year due to factors such as the tilt of the Earth's axis and the elliptical shape of the Earth's orbit. **

The overhead light in an airplane is turned off at night to create a more conducive environment for passengers to rest and sleep. Dimming the lights helps to signal to the body that it is time to rest, promoting a more comfortable and relaxing atmosphere for passengers during overnight flights. Additionally, turning off the overhead light can also help reduce distractions and create a sense of calmness in the cabin, allowing passengers to have a more peaceful journey. **

Material overhead costs include the indirect costs associated with the materials used in production, such as storage, handling, and transportation. Manufacturing overhead costs encompass the indirect expenses related to the production process, such as utilities, maintenance, and depreciation of factory equipment. Administrative overhead costs consist of the indirect expenses associated with the general management and support functions of a business, including salaries of administrative staff, office supplies, and facility costs. These overhead costs are essential for the operation of a business but are not directly tied to the production of specific goods or services. **

Fixed overhead costs are expenses that do not change regardless of the level of production or sales, such as rent, insurance, and salaries of permanent employees. These costs remain constant within a certain range of activity. Variable overhead costs, on the other hand, are expenses that fluctuate with the level of production or sales, such as utilities, raw materials, and shipping costs. These costs increase or decrease in direct proportion to the level of activity. Both fixed and variable overhead costs are important to consider when analyzing the total cost structure of a business. **

A train without overhead lines typically operates using an alternative power source, such as onboard batteries or hydrogen fuel cells. These power sources provide the energy needed to propel the train without the need for overhead wires. The train can either store energy in batteries for use when overhead lines are not available or generate electricity through a fuel cell system. This technology allows trains to operate in areas where installing overhead lines is not feasible or desirable. **

Ballpoint pens do not work well on overhead transparencies because the ink in ballpoint pens is oil-based and does not dry quickly on smooth surfaces like transparencies. This can cause smudging and smearing of the ink, making it difficult to write or draw clearly. Additionally, the plastic surface of transparencies does not absorb the ink like paper does, leading to poor adhesion and legibility. It is recommended to use permanent markers or special transparency pens designed for writing on overhead transparencies to ensure clear and lasting results. **

Yes, regular paper can be used on an overhead projector. However, it is important to ensure that the paper is not too thick or too thin, as this can affect the quality of the projection. It is also important to use transparency sheets if you want to project images or text onto a screen. Overall, regular paper can be used on an overhead projector, but it is important to consider the type and quality of the paper for the best results. **

In badminton, an overhead clear is a shot that is hit high and deep into the opponent's court, with the intention of forcing the opponent to move back and return the shuttlecock from a difficult position. To execute an overhead clear, a player must use a full arm swing, making contact with the shuttlecock above their head and generating power and height to send the shuttlecock to the back of the opponent's court. This shot is often used to regain control of the rally, create space, and put pressure on the opponent. It requires good timing, technique, and strength to execute effectively. **