Solar Surface

Tactile paving (also called tenji blocks, truncated domes, detectable warnings, tactile tiles, tactile ground surface indicators, tactile walking surface indicators, or detectable warning surfaces) is a system of textured ground surface indicators found at roadsides (such as at curb cuts), by and on stairs, and on railway station platforms, to assist pedestrians who are vision impaired.

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W Herschel used a 10 foot telescope to study the Sun in 1801 and hypothesized that the sun was a solid Earth-like sphere with atmosphere. 60 years later, J Herschel noted that patterns on the solar surface could be igneous snowflakes, giant fish swimming in the photosphere, or monsters

Secrets Behind Sunquakes May Lurk Beneath the Solar Surface

Sunquakes likely triggered deep beneath solar surface

Source of Sunquakes is Submerged beneath Solar Surface, Study Shows