We are proud to offer the Sama-Coco dataset, a relabelling of the Coco-2017 dataset by our own in-house Sama associates (here’s more information about our people!). We invite the Machine Learning (ML) community to use it for anything you would like to do – all free of charge and ungated.
This is part of our ongoing effort to redefine data quality for the modern age, and to contribute to the wider research and development efforts of the ML community. Here are the ungated links to the two datasets (both covered by the Creative Commons license) so that you can get started right away.
Occurs when a hemisphere is tilted furthest away, resulting in the shortest day of the year.
Contrary to popular belief, the seasons are not caused by how close the Earth is to the Sun. In fact, Earth is actually closest to the Sun in January, which is winter for the Northern Hemisphere. The true driver of the seasons is the . the tilt of earth's axis causes the seasons because
Earth does not sit "upright" relative to its orbital path. Instead, it maintains a constant slant. This means that for half the year, the Northern Hemisphere is angled toward the Sun, while for the other half, it leans away. Occurs when a hemisphere is tilted furthest away,
These occur when Earth’s tilt is side-on to the Sun. On these days, the Sun is directly over the equator, and almost everywhere on Earth experiences approximately 12 hours of day and 12 hours of night. Opposite Seasons The true driver of the seasons is the
When a hemisphere is tilted away from the Sun, sunlight arrives at a low, shallow angle. The same amount of solar energy is spread over a larger surface area, reducing its intensity. Days are shorter, leading to less warming. This produces winter.
Earth’s axis is an imaginary line running from the North Pole to the South Pole. As Earth orbits the Sun over 365 days, this axis always points in the same direction (toward the star Polaris, the North Star). Because of the 23.5° tilt, the Northern and Southern Hemispheres receive varying amounts of direct sunlight at different times of the year.
When a hemisphere is tilted toward the Sun, it receives sunlight at a more direct, steeper angle. This concentrates solar energy over a smaller surface area, making it more intense. Additionally, the days are longer, allowing more time for the ground and air to warm. This combination results in summer.
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