How to Add a Nuclear Energy Lab to Your Website
LK Forge · 4 min read · Updated September 2026
You can add a full nuclear energy lab to any website, blog, or classroom page with a single line of code — free, with no sign-up, no plugin, and no script to install. Visitors run a day of the plant in a glowing cutaway, trigger a SCRAM, and read the output off a live dashboard — and see the two limits that bound it: the Carnot ceiling that lets only about a third of the heat become electricity, and the decay heat that keeps the core hot long after shutdown. This guide covers the fastest way to embed the Nuclear Energy Lab, what it shows, and where it works.
The quickest way: paste one embed snippet
An embed is just an <iframe> that loads the lab from lkforge.com, plus a small credit line. Copy this into your page’s HTML where you want the widget to appear:
<iframe src="https://lkforge.com/embed/nuclear/"
width="100%" height="1950" loading="lazy"
style="border:0;max-width:720px"
title="Nuclear Energy Lab by LK Forge"></iframe>
<p><a href="https://lkforge.com/tools/physics/nuclear/">Nuclear Energy Lab</a>
by <a href="https://lkforge.com/">LK Forge</a></p> The <iframe> is the live lab; the <p> underneath is a plain credit link. Keep that line — the visible link is what keeps the widget free to embed. You can also copy this exact code straight from the LK Forge widget gallery.
What the widget shows
The lab opens on a cutaway plant with the reactor core glowing, so a visitor sees it running immediately and can then take control:
- Run the day: press Run to play a 24-hour cycle; the cooling-tower plume scales with rejected heat and the output arrow tracks the grid feed.
- Reactor sliders: set thermal power, hot (steam) and cold (sink) temperatures, coolant flow, the SCRAM hour and the operating time.
- SCRAM & decay heat: trigger a shutdown and a plot follows the core temperature against the meltdown threshold as decay heat lingers.
- Loss breakdown & spent fuel: a stacked bar splits thermal power into the Carnot-forbidden share, the turbine-generator loss and the net electricity, while a counter accumulates spent fuel over the run.
Pick the right height
The snippet uses height="1950" and max-width:720px. This is a dashboard lab: the cutaway scene, the sliders, the plots and the readouts stack into a single column on a narrow phone, so the tall height keeps everything from clipping there. On a wider page the widget centres within its max-width. That single height works across screen sizes, so there is nothing to tweak for mobile.
Where it works
Because it is a standard iframe, the embed works anywhere you can add HTML:
- WordPress: add a Custom HTML block and paste the snippet.
- Squarespace: use a Code / Embed block.
- Wix: add an Embed HTML / iframe element.
- Ghost: insert an HTML card.
- Notion: paste the
/embed/nuclear/URL and choose "Create embed". - Plain HTML, an intranet, or a lesson page: paste the snippet straight into the markup.
That’s the whole job. Copy the embed code from the widget gallery and paste it wherever an energy, physics or engineering lesson — or a blog post on nuclear power, the Carnot limit or decay heat — needs a reactor students can actually run.
Grab the embed code from the LK Forge widget gallery — free, no sign-up.
Open the Nuclear Energy LabFrequently asked questions
- What can visitors do with the embedded Nuclear Energy Lab?
- They press "Run" to play a 24-hour day of the plant and use sliders to set the thermal power, the hot (steam) and cold (sink) temperatures, the coolant flow, the SCRAM hour and the operating time. Trigger a SCRAM and the cutaway core dims, the output arrow vanishes, and a decay-heat curve shows the core staying hot after the chain reaction stops.
- What does the Nuclear Energy Lab teach?
- It shows why a thermal plant turns only about a third of its heat into electricity. A stacked bar splits thermal power into the Carnot-forbidden share, the turbine-generator loss and the net electricity delivered, set by the hot and cold temperatures. After a SCRAM, a plot tracks the core temperature against the fuel-damage threshold as decay heat keeps it hot, and a counter builds up spent fuel over the run.
- Is embedding the Nuclear Energy Lab free?
- Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Nuclear Energy Lab by LK Forge" credit line that comes with the embed code.
- What iframe height should I use, especially on mobile?
- The snippet ships with height="1950" and a max-width of 720px. This is a dashboard lab — the cutaway scene, sliders, plots and readouts stack into a single column on a narrow phone, so the tall height keeps everything from clipping there while the widget simply centres on a wider page. 1950 is the safe default across screen sizes.
- Where can I embed it — WordPress, Wix, Squarespace, Notion?
- Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/nuclear/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.
- Does the embedded lab track visitors or set cookies?
- No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.