When getting glasses, what is the little house you see in the ophthalmometer for?

Feedback
Report

0 View PremiumOct 11, 2025

Repost is prohibited without the creator's permission.

lilunkexue

3 Followers · 1.2K Videos

Recommended for You

All
Anime

1:15

The ship you’d never dare approach on the sea—its cabin temperatures are so frigid they can crack st

laoshuguaitan

5 Views

1:00

Why can a flame gun refurbish plastic?

yuzhouguanya

31 Views

4:02

Far more than the average family car? A palm-sized inline four! The whole process of assembly!

kejishouo

1.8K Views

0:58

[Physical Magician Matthew] Humanoid Weapon

keshangxinmengchaop

19.1K Views

3:47

You May Never Open This Video

Haoqixinhuishe

25 Views

2:56

A Few Useful Wilderness Survival Tips

jixiepangke

38 Views

2:45

Ma Dong-seok, Korea's first physical anesthesiologist

kukuxiaoyua

692 Views

4:25

The ultimate charm of DIY: How to make a Lego car cross a cliff

palmer_collins_03

11 Views

3:45

How do you weld a large pipe to a small pipe?

jixiepangke

30 Views

6:50

Seeing the collision of atomic nuclei with the naked eye

Jinzhengmeiyongde

25 Views

4:53

Electromagnetic experiment

Tonghuaxiaoze

596 Views

5:36

Skilled Worker of the “Men’s Speed Bump”

yaki1

45 Views

2:07

Amazing! Watch 28 types of mechanism principles in one go.

haoyongwujingongju

28 Views

4:04

The Speed Bump: The Skilled Worker Series!

jixiepangke

19 Views

2:28

Hole replacements and sprinkler head repairs at the golf course

yaki1

17 Views

4:04

Pea dispersion

Xianweihua

94 Views

1:36

Who is in the bin!? Pennywise/RATE VFX

RATE_VFX

210 Views

2:12

What’s the mystery hole on the side of the ice hockey rink for?

yaki1

19 Views

0:49

How to draw a circle?

lilunkexue

292 Views

4:11

The power of science

haoyongwujingongju

95 Views