diff --git a/mods/tech.js b/mods/tech.js
index a01b4c45..cfa216a8 100644
--- a/mods/tech.js
+++ b/mods/tech.js
@@ -98,6 +98,7 @@ elements.nvidia_cpu = {
         "XX|SH|XX",
     ],
     category: "tech",
+    temp: 25, // Starting temperature (room temperature in Celsius)
     tempHigh: 1000, // Melting point for realism
     stateHigh: "molten_silicon", // Assuming it melts into molten silicon
     reactions: {
@@ -106,11 +107,47 @@ elements.nvidia_cpu = {
         "acid": { elem1: "corroded_cpu", elem2: "null" },
         "poison": { elem1: "corroded_cpu", elem2: "null" },
     },
-    breakInto: ["silicon", "metal_scrap"],
+    breakInto: ["silicon", "metal_fragments"],
     conduct: 10, // Moderate conductivity
     density: 2330, // Density of silicon
+    tick: function(pixel) {
+        if (!pixel.heatTick) {
+            pixel.heatTick = 0;
+        }
+        pixel.heatTick++;
+        if (pixel.heatTick >= 300) { // 300 ticks ~ 5 seconds
+            pixel.temp += 2; // Increase temperature by 2 degrees Celsius
+            pixel.heatTick = 0; // Reset heatTick counter
+        }
+        
+        // Check for cooling fan nearby
+        let cooled = false;
+        for (let dx = -1; dx <= 1; dx++) {
+            for (let dy = -1; dy <= 1; dy++) {
+                if (dx === 0 && dy === 0) continue;
+                let neighbor = pixelMap[pixel.x + dx]?.[pixel.y + dy];
+                if (neighbor && neighbor.element === "spinning_cooler_fan") {
+                    cooled = true;
+                }
+            }
+        }
+
+        if (cooled) {
+            if (!pixel.coolTick) {
+                pixel.coolTick = 0;
+            }
+            pixel.coolTick++;
+            if (pixel.coolTick >= 300) { // 300 ticks ~ 5 seconds
+                pixel.temp -= 2; // Decrease temperature by 2 degrees Celsius
+                pixel.coolTick = 0; // Reset coolTick counter
+            }
+        } else {
+            pixel.coolTick = 0; // Reset coolTick counter if no cooler is nearby
+        }
+    },
 };
 
+
 elements.molten_silicon = {
     color: "#ffcc99",
     behavior: behaviors.LIQUID,
@@ -149,3 +186,97 @@ elements.silicon = {
     density: 2330,
 };
 
+elements.glowing_rainbow_led = {
+    color: ["#FF0000", "#FF7F00", "#FFFF00", "#00FF00", "#0000FF", "#4B0082", "#8B00FF"], // Colors of the rainbow
+    behavior: [
+        "XX|XX|XX",
+        "XX|SH|XX",
+        "XX|XX|XX",
+    ],
+    category: "tech",
+    state: "solid",
+    density: 300, // Arbitrary density for LED
+    tempHigh: 150, // Melting point for realism
+    stateHigh: "molten_plastic",
+    reactions: {
+        "water": { elem1: "short_circuit", elem2: "steam" },
+        "salt_water": { elem1: "short_circuit", elem2: "null" },
+        "acid": { elem1: "corroded_led", elem2: "null" },
+        "poison": { elem1: "corroded_led", elem2: "null" },
+    },
+    tick: function(pixel) {
+        // Function to cycle through colors
+        if (!pixel.colorIndex) {
+            pixel.colorIndex = 0; // Initialize color index
+        }
+        pixel.colorIndex = (pixel.colorIndex + 1) % elements.glowing_rainbow_led.color.length;
+        pixel.color = elements.glowing_rainbow_led.color[pixel.colorIndex];
+    },
+};
+
+elements.corroded_led = {
+    color: "#707070",
+    behavior: behaviors.POWDER,
+    category: "tech",
+    tempHigh: 800,
+    stateHigh: "ash",
+    conduct: 1,
+};
+
+elements.spinning_cooler_fan = {
+    color: "#4a90e2", // Blue color for the fan
+    behavior: [
+        "XX|XX|XX",
+        "XX|XX|XX",
+        "XX|XX|XX",
+    ],
+    category: "tech",
+    state: "solid",
+    density: 800, // Arbitrary density for the fan
+    tick: function(pixel) {
+        // Define movement pattern
+        if (!pixel.moveStep) {
+            pixel.moveStep = 0; // Initialize movement step
+        }
+        
+        // Determine the current movement direction
+        let directions = [
+            {dx: 0, dy: -1},  // Move up
+            {dx: 1, dy: 0},   // Move right
+            {dx: 0, dy: 1},   // Move down
+            {dx: -1, dy: 0}   // Move left
+        ];
+        
+        let move = directions[pixel.moveStep];
+        
+        // Attempt to move in the current direction
+        let newX = pixel.x + move.dx;
+        let newY = pixel.y + move.dy;
+        
+        if (isEmpty(newX, newY)) {
+            // If the next position is empty, move there
+            movePixel(pixel, newX, newY);
+        }
+        
+        // Advance to the next step in the movement pattern
+        pixel.moveStep = (pixel.moveStep + 1) % directions.length;
+    },
+};
+
+function isEmpty(x, y) {
+    // Check if the position (x, y) is empty
+    if (x >= 0 && y >= 0 && x < width && y < height) {
+        return !pixelMap[x][y];
+    }
+    return false;
+}
+
+function movePixel(pixel, newX, newY) {
+    // Move the pixel to the new position
+    if (isEmpty(newX, newY)) {
+        pixelMap[pixel.x][pixel.y] = null; // Clear the current position
+        pixel.x = newX;
+        pixel.y = newY;
+        pixelMap[newX][newY] = pixel; // Set the new position
+    }
+}