le.metteo

The hidden reasons behind everyday things.
New discoveries every day.

[le.metteo @lematteowow]

Why do ice crystals sometimes appear on ice cream?
#DidYouKnow

[le.metteo @lematteowow]

Those raised lines around laptop keys have a purpose.
#DidYouKnow

[le.metteo @lematteowow]

Why are modern airplane windows smaller than older ones?
#DidYouKnow

[le.metteo @lematteowow]

Those red and white stripes on emergency vehicles have a purpose.
#DidYouKnow

[le.metteo @lematteowow]

The arrow beside your fuel gauge tells you something useful.
#DidYouKnow

[le.metteo @lematteowow]

Why are some airplane toilets positioned in the middle of the fuselage?
#DidYouKnow

[le.metteo @lematteowow]

The upward curve of a teapot spout is functional, not decorative.
#DidYouKnow

[le.metteo @lematteowow]

The indentation under a ceramic mug is there for a reason.
#DidYouKnow

[le.metteo @lematteowow]

That small tab on a shopping-bag handle has a purpose.
#DidYouKnow

[le.metteo @lematteowow]

Why do smartphone screens flicker when exposed to certain lighting?

[le.metteo @lematteowow]

Those reflective white stripes on traffic signs serve a purpose.
#DidYouKnow

[le.metteo @lematteowow]

That small hole near a shoe's tongue has a purpose.
#DidYouKnow

[le.metteo @lematteowow]

Streetlight height is not arbitrary. Here is why.
#DidYouKnow

[le.metteo @lematteowow]

That small raised mark on a car wheel rim has a purpose.
#DidYouKnow

[le.metteo @lematteowow]

Why do some fire escapes still use narrow spiral stairs?
#DidYouKnow

[le.metteo @lematteowow]

That small metal tab on an airplane seatbelt buckle has a purpose.
#DidYouKnow

[le.metteo @lematteowow]

Why do kitchen knives curve upward? Here is the reason behind the design.
#DidYouKnow

[le.metteo @lematteowow]

Why wine bottles have a deep indentation at the bottom

[le.metteo @lematteowow]

Why sneakers have an extra eyelet at the top

[le.metteo @lematteowow]

The Secret Geometry of a Pizza Box Flap