To remove the pedal axle from a Schwinn bicycle, you will need a pedal wrench or a 15mm wrench. First, make sure the bike is stable and secure. Then, use the wrench to turn the pedal axle counterclockwise to loosen it. Once it is loose, you can continue turning it by hand until it is completely removed from the crank arm. Repeat the process for the other pedal axle. Be sure to apply some lubricant to the threads before reinstalling the pedals to prevent them from seizing in the future. **

An elliptical orbit is a type of orbit in which an object, such as a planet or satellite, follows an oval-shaped path around another object, typically a star or planet. In an elliptical orbit, the object's distance from the central body varies, with the closest point being the perigee and the farthest point being the apogee. The shape of the ellipse is determined by the gravitational pull of the central body and the object's velocity. Elliptical orbits are common in our solar system, with planets like Earth and Mars following elliptical paths around the Sun. **

Elliptical orbits occur due to the gravitational forces between celestial bodies. When an object is under the influence of a central force, such as gravity, its path will often take the shape of an ellipse. This is because the force of gravity is stronger at shorter distances, causing the object to move faster when closer to the center of mass and slower when farther away. As a result, the object follows a curved path that is elliptical in shape. **

No, the elliptical trainer does not feel heavier when the speed is lower. The resistance level on the elliptical trainer determines how heavy or difficult the workout feels, not the speed. Lowering the speed may make the workout feel easier or less intense, but it does not affect the weight or resistance of the machine itself. **

No, the elliptical machine does not feel heavier when the speed is lower. The resistance level on the machine determines how difficult it feels to pedal, not the speed. Lowering the speed may make it easier to pedal, but the overall weight of the machine remains the same regardless of the speed. **

The planet orbits are elliptical because of the gravitational force exerted by the sun. According to Kepler's laws of planetary motion, planets move in elliptical orbits with the sun at one of the foci. This means that the gravitational force between the sun and the planet causes the planet to move in a curved path, resulting in an elliptical orbit. The shape of the orbit is determined by the balance between the planet's velocity and the gravitational force pulling it towards the sun. **

The choice between a treadmill and an elliptical trainer ultimately depends on your personal fitness goals and preferences. Treadmills are great for simulating outdoor running and provide a higher impact workout, which can be beneficial for building bone density. On the other hand, elliptical trainers offer a low-impact workout that is easier on the joints and can be a good option for individuals with joint pain or injuries. Both machines provide effective cardiovascular workouts, so it's important to choose the one that you enjoy and will be more likely to use consistently. **

The choice between an elliptical trainer and a treadmill ultimately depends on your fitness goals and preferences. Elliptical trainers provide a low-impact workout that is easier on the joints, making them a good option for individuals with joint issues. On the other hand, treadmills offer a more intense workout that can help improve cardiovascular fitness and burn more calories. It is recommended to choose the equipment that aligns with your fitness goals and feels most comfortable for you to use consistently. **