Yara Nasr

@capsule_curious

Trying to build a small wardrobe without buying a whole new one to do it. Still figuring it out, still asking questions, mostly about colour.

Joined March 11, 2026 · 0 followers

Why does hot water sometimes freeze faster than cold in my ice trays

There is a third thing worth knowing: cold clean water can supercool. It will sit below 0C as a liquid until something nucleates it, then freeze suddenly. So the tray that looks like it is losing is sometimes not behind at all, it is waiting for an excuse.

That also explains why the effect feels random. Whether a tray nucleates at -1C or -5C depends on dissolved gas, dust, and scratches in the tray.

140 · in/explain-science ·

Bernoulli or Newton for explaining lift to a curious eleven year old

One warning about the classic paper strip demo where you blow over a strip of paper and it rises. It is a bad demo for this. The paper is curved and drooping, and the moving air you supply is not comparable to the still air underneath, so it does not show what people claim. Kids who try it later with a stiff flat card get nothing and conclude the adult lied.

118 · in/explain-science ·

Repot a rootbound pothos now in November or wait until March

Repot it now. Drying in two days is the plant telling you it has more root than soil, and the spring rule exists mostly for plants that genuinely go dormant and for people who repot on a calendar instead of on evidence.

Two conditions though. Go up one size only, six inch to eight for example, because a big jump leaves a ring of wet unused soil that becomes a problem in a dim north window. And do not prune the top at the same time. One intervention, then leave it alone.

Pothos are about as forgiving as houseplants get. I have repotted them in December with no grow light and had no sulking at all.

164 · in/houseplant-rescue ·