לצפייה בתמונה
לחץ כאן
10 Surprising Science Facts
Love science? So do we! Here are some intriguing science facts that might surprise you.
1. The True Shape of a Raindrop
We all learn as kids to draw raindrops as tear-shaped. But in reality, there is no resemblance between this iconic shape and the real thing. In truth, a raindrop is completely round, though its fall from the sky to the ground due to gravity sometimes gives it a tear-like appearance.
2. The Red Juice in Your Steak
It's not blood. The red juice that sometimes comes out of a steak isn't blood; it's actually myoglobin, which is similar but not the same.
3. What Do You Really Know About Polar Bears?
Few people know that polar bears' white fur is actually transparent, their skin is black, and when in high humidity environments, they can "change their skin," so to speak, turning... green.
4. Digestion Occurs in the Stomach – Oh Really?
Most of the digestion process doesn't occur in the stomach as many believe, but rather in the small intestine.
5. Solids Can Turn Directly Into Gas
How many of you know that a solid can turn directly into a gas, without becoming a liquid first? This process, where a solid skips the liquid state to become a gas, is called sublimation in chemistry. The best example is dry ice, which transitions straight from solid to gas.
6. Shell or Cup?
When placing a shell against our ears, we often assume we're hearing the ocean. However, this is a common misconception. What we actually hear is our own blood coursing through our veins. Therefore, placing a cup against our ear yields the same sounds.
7. What Happens to Dolphins if They Drink Seawater?
Dolphins don't drink seawater. Why not? Good question. The saltiness of seawater would be too much for them and could even be fatal if consumed. So, how do they avoid dehydration? Their nutritional water needs are met through the food they consume.
8. Hear Your Muscles Moving
If our ears could capture frequencies of 20 Hz, we would be able to hear the sound of our muscles moving.
9. Allergic to Pets?
Allergies to pets don't come from their fur but rather from their dead skin cells, saliva, or waste. Thus, according to science, thoroughly and daily cleaning pets can significantly reduce tendencies toward allergies based on this.
10. Taste Map of the Tongue
It's a common belief that the tongue is mapped out with specific regions for each taste. However, this notion is fundamentally flawed, as our tongues can perceive all tastes from all its areas.
