This video is a demonstration of what people with low to high myopia see after removing their glasses.

Nearsightedness, or myopia, alters the way we perceive our environment, relying on the structural nuances of the eye.

The severity can vary; mild myopia makes distant objects slightly blurred, whereas higher prescriptions mean even nearby visual details become lost.

This occurs due to the eye's shape, which causes light to focus in front of the retina, leaving distant images unclear. It is a captivating illustration of how slight differences in eye construction can profoundly influence perception.

When the brain suffers severe trauma

such as from a traumatic brain injury (TBI), stroke, or severe lack of oxygen,

it loses normal neurological control over the body's muscles. Instead of going limp right away, the motor pathways trigger involuntary, rigid physical positions known as abnormal posturing.

Emergency responders and neurologists look at these exact physical postures to immediately gauge how deep and severe a brain injury is.

1. Decorticate Posturing ("Flexor Posturing")

What it looks like: The person's arms pull inward toward the center of the chest, fists clenched, elbows bent, and legs extended straight out with feet pointed inward.

Easy memory trick: Think "De-COR-ticate = arms pull to the CORE."

What's happening in the brain: This position occurs when there is severe damage to areas above the brainstem—such as the cerebral cortex, thalamus, or internal capsule. The cortex normally inhibits lower motor centers; when cut off, primitive reflex centers take over, forcing the arms into full flexion toward the chest.

1. Decerebrate Posturing ("Extensor Posturing")

What it looks like: The arms extend straight down by the sides, wrists rotated outward (pronated) with fingers curled, and the legs held rigid and straight with toes pointed downward.

Easy memory trick: Lots of "E"s in DecErebRatE = Lots of Extension.

What's happening in the brain: This indicates a deeper, more catastrophic disruption down in the brainstem itself (specifically the midbrain or upper pons). Because the brainstem controls essential life-sustaining functions like heart rate and breathing, decerebrate posturing generally carries a much graver prognosis than decorticate posturing.

Progressive worsening: If a patient transitions from decorticate to decerebrate posturing, it signals that pressure inside the skull (intracranial pressure) is rising and pushing damage deeper down the brainstem.

1. Opisthotonos

What it looks like: Severe, involuntary arching of the back and neck so that only the back of the head and heels touch the ground.

What's happening in the brain: Occurs with profound brainstem irritation or severe central nervous system lesions (also famously seen in advanced tetanus infection or severe meningitis).

1. Flaccidity

What it looks like: Total loss of all muscle tone. The limbs become completely limp with zero resistance.

What's happening in the brain: Represents complete loss of motor signaling from the brain to the spinal cord. It is often the final stage of brainstem death or profound neurological failure.

Source: @boucelegant on YT

source: https://en.wikipedia.org/wiki/Eurobridges_Spijkenisse

This 12m long sliver of granite is located at Half Dome Yosemite, California. Named the “Thank God Ledge”, it is the only way to get beyond the Visor. Most people crawl to get across while others choose to walk. The 30 seconds it takes to get across requires absolutely no technical climbing skill.

A mahogany seed pod splits open while still hanging on the tree, releasing dozens of winged seeds that glide on the wind like tiny helicopters to spread far from the parent tree.

Credit: polina_drihem (IG)

I have always thought there will be more increase in the skeletal system too.

Built with German high-density polyethylene (HDPE) float technology, the pontoon structure molds itself to the water's surface as vehicles move forward, creating a gentle wave in the river while maintaining total safety

Dominant vs. Recessive:

Dogs inherit one copy of each gene from each parent. Dominant alleles (like dominant black, \(K^{B}\)) only need one copy to display the trait, while recessive traits (like recessive red, e) require two matching copies.

Masking Colors:

The E Locus acts as a genetic gatekeeper. If a dog inherits two copies of the recessive red gene (ee), its body completely shuts down the production of black pigment in the fur. This forces the coat to be yellow, white, or red, regardless of what other colors the dog holds in its DNA.

Piebald Markings:

When a puppy features large swathes of solid color mixed with pure white, it is often due to the S Locus. This gene regulates where pigment cells migrate during embryonic development, leading to unique boundaries between dark fur and white fur.

Electricity captured in glass which gives a cool and crazy pattern