United States
United Kingdom
Canada
Australia
New Zealand
IrelandThis week on the channel +1.3M views this week
Steve Mould's tumbling beads arrange themselves into flowers
His sole upload brings Manchester researchers into an investigation of why mixing grains can separate them instead.
In short
On YouTube, Steve Mould has 3,620,000 subscribers and 1,118,432,129 views in all, as of November 11, 2026. In the last 7 days it gained 1,604,899 views. Its most watched video of the last 30 days is "This Material Sorts Itself", with 1,548,443 views. By YouTube subscribers it is No. 827 of the 5,393 channels on Trari, and No. 22 of 87 in category "Science and experiments". On Instagram, @stevemouldscience has 488,945 followers. The account gained 173 followers in the last 7 days.
YouTube: The numbers today
subscribers
3,620,000
no significant change in the last 7 days
no significant change in the last month
no significant change in the last month
total views
1,118,432,129
▲ 1,604,899 in the last 7 days
▲ 7,708,304 in the last 30 days
▲ 7,708,304 in the last 30 days
views a day (current pace)
219,877
on a typical day: 268,415
Videos on the channel
392
1 uploaded in the last 30 days
Last upload
11 days ago
October 31, 2026
Views per subscriber
308
a new long video usually gets 2,137,790 views
a new short video usually gets 450,026 views
a new short video usually gets 450,026 views
Next milestone
5,000,000 subscribers
1,380,000 subscribers to go
Instagram: The numbers today
@stevemouldscience · The account on Instagram
Followers
488,945
▼ 26 a day, on average over the last 2 days
▲ 173 in the last 7 days
▲ 173 in the last 7 days
Posts
417
Views per Reel
66,199
usually, by 14 recent Reels
Likes per post
1,605
usually, by 15 recent posts
0.33% of followers
0.33% of followers
Place on Instagram
| Among all channels on Trari | In the category Science and experiments | |
|---|---|---|
| By Instagram followers | 1,115 of 2,442 | 16 of 43 |
Ranked among the channels whose Instagram account is on Trari.
Instagram followers: Science and experiments
Latest posts
Tap a post to see it here
| Post | Type | Posted | Views | Likes | Comments |
|---|---|---|---|---|---|
| Erm... erm... erm... apparently I had a lot to say about this one. That's 22… | Reel | October 30, 2026 | 442 | 4 | 1 |
| Erm... erm... erm... apparently I had a lot to say about this one. That's 22… | Reel | October 30, 2026 | 29,918 | 403 | 2 |
| Warning: some plates were harmed in the making of this video. | Reel | October 23, 2026 | 328,329 | 10,580 | 63 |
| We’ve all been there, right? Trying to design a surprisingly complicated hooded… | Reel | October 15, 2026 | 75,592 | 852 | 1 |
| Nature is completely bizarre, and the male hooded seal is one of the best… | Photo | October 2, 2026 | - | 3,099 | 19 |
| Why can’t a cold liquid make a hot liquid even hotter? | Reel | October 1, 2026 | 1,059,762 | 37,943 | 233 |
| When someone got in touch asking why helium balloons dampened sounds in a way… | Reel | September 17, 2026 | 109,818 | 4,666 | 52 |
| I think I’ll let the seal do the talking. 🦭 | Reel | September 15, 2026 | 27,032 | 370 | 2 |
Of the 15 latest posts: 14 Reels and 1 photo.
As of November 10, 2026
Follower, post, like, comment and view counts in this part are Instagram's. The changes and the "usually" figures are Trari's own calculations.
YouTube: What happened lately
November 10, 2026 3.5x the video's usual pace Hooded Seals are Really Weird... The video ran that day at 59,205 views a day, 3.5 times its usual pace (16,766).
This week on the channel +2.2M views this week
Hooded seals add animal oddities to Steve Mould's science shelf
With no new uploads, his existing catalog brought in more than two million views over the week.
This week on the channel
A see-through ram pump keeps Steve Mould flowing
The month-old video on a pump that runs on the water's own momentum is closing in on four million views.
The video drawing the most views now
Hooded Seals are Really Weird...
- Video published
- September 10, 2026
- Video views so far
- 1,594,723
- Video views, pace per day
- 44,064
Similar channels
YouTube: Position on Trari and in the category
| Among all channels on Trari | In the category Science and experiments | |
|---|---|---|
| By subscribers | 827 of 5,393 | 22 of 87 |
| By views gained this week | 2,163 of 5,274 | 27 of 87 |
| By views gained in the last 30 days | 2,020 of 5,043 | 27 of 81 |
The ranking by views counts only channels whose weekly number is available.
- The channel's share of the category
- 0.3% of all views the category's channels gained this week
Subscribers in the category Science and experiments
Views gained this week in the category Science and experiments
YouTube and Instagram: Subscribers and followers, last 30 days
Growth in percent since November 4, 2026, so both lines start from the same point
- YouTube · 3,620,000 subscribers 0% (0)
- Instagram · 488,945 followers +0.03% (+160)
From November 4, 2026 to November 11, 2026: on YouTube from 3,620,000 to 3,620,000 subscribers (0%), on Instagram from 488,785 to 488,945 followers (+0.03%).
YouTube rounds a large channel's subscriber count, so its line moves in steps.
The numbers by day
| Day | Subscribers (YouTube) | Followers (Instagram) |
|---|---|---|
| November 11, 2026 | 3,620,000 | - |
| November 10, 2026 | 3,620,000 | 488,945 |
| November 9, 2026 | 3,620,000 | 488,979 |
| November 8, 2026 | 3,620,000 | 488,947 |
| November 7, 2026 | 3,620,000 | 488,917 |
| November 6, 2026 | 3,620,000 | 488,867 |
| November 5, 2026 | 3,620,000 | 488,788 |
| November 4, 2026 | 3,620,000 | 488,785 |
YouTube: Total views, last 30 days
October 13, 2026: 1,110,982,707 views → November 11, 2026: 1,118,432,129 views · average: 256,876 views a day
YouTube: The channel's latest videos
The last 15 videos uploaded to the channel, with today's numbers. Click a video to play it here.
| Video | Uploaded | Length | Views | Per day | First day | Likes | Comments |
|---|---|---|---|---|---|---|---|
 This Material Sorts Itself | October 31, 2026 | 18:37 | 1,548,443 | 31,277 | 808,140 | 22,531 | 1,211 |
 This Device Turns Anything into a Suction Cup | September 30, 2026 | 13:50 | 1,704,386 | 1,194 | - | 25,037 | 1,254 |
 Hooded Seals are Really Weird... | September 10, 2026 | 2:15 short | 1,594,723 | 44,064 | - | 70,014 | 492 |
 The "Perpetual Motion" Pump That Actually Works | August 31, 2026 | 16:31 | 4,330,638 | 1,961 | - | 43,933 | 2,400 |
 Hooded Seals are amazing! | August 28, 2026 | 0:50 short | 214,156 | 422 | - | 5,042 | 309 |
 This Device Goes Past Equilibrium | August 22, 2026 | 13:23 | 2,137,790 | 2,625 | - | 50,661 | 3,098 |
 The Euler Disc Is The Wrong Shape | August 1, 2026 | 20:01 | 1,307,243 | 945 | - | 46,528 | 4,497 |
 The Arm Spin That Stops a Fall | July 9, 2026 | 13:26 | 4,461,224 | 1,163 | - | 74,378 | 2,552 |
 Why clouds and foam are white | July 3, 2026 | 3:00 short | 331,265 | 266 | - | 18,446 | 355 |
 The disappearing ink that isn’t ink | June 26, 2026 | 1:32 short | 161,667 | 189 | - | 7,093 | 215 |
 The Anti Trampoline Effect | June 25, 2026 | 16:45 | 2,794,848 | 4,087 | - | 49,581 | 2,676 |
 What chilli is actually doing to you... | June 19, 2026 | 1:41 short | 186,605 | 173 | - | 9,021 | 429 |
 This structure feels impossible to move | June 12, 2026 | 1:42 short | 2,085,358 | 212 | - | 80,737 | 839 |
 This zipper is really weird... | June 8, 2026 | 0:55 short | 2,379,037 | 230 | - | 61,900 | 750 |
 Why doesn’t the ball stay inside? | June 5, 2026 | 1:05 short | 568,788 | 130 | - | 15,018 | 193 |
Audience engagement
- likes per 1,000 views
- 22.5 in the category: 30.2
- comments per 1,000 views
- 0.8 in the category: 1.1
- short vs long
- 8 short (up to 3 minutes), 7 long
average views per short video: 940,199
average views per long video: 2,612,081
YouTube: Most watched videos (not Shorts)
| Video | Uploaded | Length | Views |
|---|---|---|---|
 The Assassin's Teapot Is Weird | December 10, 2021 | 9:12 | 50,702,616 |
 Wirtz pumps are really clever | October 10, 2023 | 12:05 | 19,117,519 |
 Self-Healing Material | June 17, 2022 | 9:48 | 17,466,984 |
 Can water solve a maze? | March 31, 2023 | 9:09 | 17,031,542 |
 How petrol pumps know when to turn themselves off | September 16, 2022 | 13:56 | 15,563,552 |
YouTube: Most watched Shorts
| Video | Uploaded | Length | Views |
|---|---|---|---|
 Can water solve a maze #shorts | April 3, 2023 | 1:01 | 29,537,950 |
 Why does a Gluggle Jug Gluggle? | March 29, 2024 | 1:00 | 26,131,101 |
 How does this table stand up? | November 10, 2023 | 0:59 | 24,339,868 |
 I built a 2D Pythagoras Cup to figure out what is going on … | January 16, 2024 | 0:40 | 19,197,422 |
 How Do Washing Machines Actually Work? | January 5, 2024 | 1:00 | 18,151,310 |
YouTube: What happened on the channel in the last 30 days
The days when the channel's numbers left the ordinary.
- Video surgingHooded Seals are Really Weird... The video ran that day at 59,205 views a day, 3.5 times its usual pace (16,766).
- Video surgingHooded Seals are Really Weird... The video ran that day at 42,566 views a day, 3.1 times its usual pace (13,899).
- MilestoneThis Material Sorts Itself The video passed 1,000,000 views.
- Views jumpThe whole channel ran that day at 1,002,390 views a day, 4.7 times a normal day (215,043).
- MilestoneHooded Seals are Really Weird... The video passed 1,000,000 views.
Data source: Trari Social News, Trari Traffic Trends and Ranking Platform, Google YouTube, Meta Instagram
Subscriber, view, like and comment counts are YouTube's. Rates, usual days, rankings, comparisons and categories are Trari's own calculations.
Stories
This week on the channel +1.3M views this week
Steve Mould's tumbling beads arrange themselves into flowers
His sole upload brings Manchester researchers into an investigation of why mixing grains can separate them instead.
This week on the channel +2.2M views this week
Hooded seals add animal oddities to Steve Mould's science shelf
With no new uploads, his existing catalog brought in more than two million views over the week.
This week on the channel
A see-through ram pump keeps Steve Mould flowing
The month-old video on a pump that runs on the water's own momentum is closing in on four million views.