Score
Title
607
How To Search ELI5: A Quick Reminder About Rule 7
1487
ELI5: If electric fields produce magnetic fields, and our brain/nervous system operates electrically, how do we not have electromagnetic interference disrupting our entire body's operation?
306
ELI5: Out of order processing and Tomasulo's algorithm
46
ELI5: Why are some body parts, like the elbows, more ashy than others?
8
ELI5: How are pre-cooked, non-frozen, TV dinners stay unspoiled without refridgeration or preservatives?
15
ELI5: Where do all the chromosomes “go” during mitosis?
3
ELI5: How can freezing have a "burning" effect?
1
ELI5: How IOTA is different than other cryptos?
1
ELI5:Orientation of Unknown Written Non-Pictographic Text
3
ELI5: Reaction between Calcium Hydroxiapatite and Fluoride Ions.
340
ELI5: When a light is turned on, where do the photons come from?
1
ELI5: Webpage cookies
0
ELI5: Congressmen and insider trading law
0
ELI5: What is the Polchinski's paradox?
1
ELI5: Why do pictures lighting go half dark and half light when someone else’s flash goes off
9989
ELI5: If light moves at a constant speed, does it never need to speed up? How can it be instantly at 300,000km/s?
5
ELI5: How does Hyperbaric Oxygen therapy work and help heal wounds?
0
ELI5: BPF Bit Masking
0
ELI5: How does “supercooled” water work?
1
ELI5: one-time-pads: how do source and receiver know they are using the same key?
0
ELI5 How phase shifts can occur in three-phase transformers.
8
ELI5: Why are billet parts structurally stronger than cast parts? And why are forged parts stronger than both?
8
ELI5: Why does a car moving at 5 MPH for 70 miles use less energy than a car moving at 70 MPH for 70 miles?
41
ELI5: Why is cold air better for an internal combustion engine?
0
ELI5: How does a volcano erupting increase the height of the actual volcano? It seems logical that the extra mater should just make it wider as it falls around and the explosion make it shorter.
5
ELI5: the math behind determining pot equity in Texas Hold 'Em
15
ELI5: What is the maximum acidity level of things like citric acid or vinegar that our digestive system can tolerate, and why?
4
ELI5: What does 'tension' in High Tension and Low Tension cables mean?
5
ELI5: why is it so difficult to figure out how life actually started?
86
ELI5: how can a spacecraft calculate its speed in space?
0
ELI5: Why does a wet cloth soak up a spill better than a dry cloth?
4
ELI5: Why can't a barcode/qr code store an executable virus?
3
ELI5:how do people put oxygen in a oxygen tank?
15
ELI5 where does the heat come from when we burn firewood.
8
[ELI5] On my toaster oven, Broil vs Bake vs Toast vs Convection
6
ELI5: How do deep learning engines/algorithms work?
8732
ELI5: Why do some fabrics get softer when they're washed a lot, while others get rougher?
4
ELI5:How does a turbo provide MORE power than it requires to spin?
4
ELI5:Why do insects and other arthropods have very elaborate, complex mouths?
3
ELI5: Why in mirrors, the image formed behind the mirror is called "virtual," but in lenses it is called "real"
12
ELI5: How does non-scratch glass work?
16 mmmmmmBacon12345 Lasers! You take a few lasers pointed in from different angles and have them cross at a single point. Individually they don't have enough power to damage the material but they do when you cross multiple beams
4 lirrormine Hmm I would have thought they were a special kind of laser: ultrafast lasers, or femtosecond lasers. They have extremely short pulses with huge amounts of peak power. Unlike 'normal' lasers that machine or mill material away by boiling and vaporising, these lasers machine or mill by 'cold ablation': the huge light field power frees the electrons, then it becomes opaque, so absorbs more light, so it frees more electrons, then it becomes more opaque etc etc. Eventually there is no more electrons holding the material together, and it just explodes. It's just that it happens in a tiny scale; if you look at it with a microscope, it's an absolute mess.
3 The_camperdave They're called [sub-surface laser engravings](https://www.youtube.com/watch?v=sOrby692Uag) or bubblegrams. When doing laser engraving, typically they focus the laser on the surface of the material. It creates a microscopic fracture. With glass, crystal, and certain plastics, you can focus the laser below the surface. This causes the microfracture to occur deep within the glass itself, not just at the surface. By adjusting the focus depth, as well as the X and Y coordinates of the laser, a 3D engraving can be made.
2 mydadthecircusclown Block* I meant block
15 0 mmmmmmBacon12345 Lasers! You take a few lasers pointed in from different angles and have them cross at a single point. Individually they don't have enough power to damage the material but they do when you cross multiple beams
5 0 lirrormine Hmm I would have thought they were a special kind of laser: ultrafast lasers, or femtosecond lasers. They have extremely short pulses with huge amounts of peak power. Unlike 'normal' lasers that machine or mill material away by boiling and vaporising, these lasers machine or mill by 'cold ablation': the huge light field power frees the electrons, then it becomes opaque, so absorbs more light, so it frees more electrons, then it becomes more opaque etc etc. Eventually there is no more electrons holding the material together, and it just explodes. It's just that it happens in a tiny scale; if you look at it with a microscope, it's an absolute mess.
3 0 The_camperdave They're called [sub-surface laser engravings](https://www.youtube.com/watch?v=sOrby692Uag) or bubblegrams. When doing laser engraving, typically they focus the laser on the surface of the material. It creates a microscopic fracture. With glass, crystal, and certain plastics, you can focus the laser below the surface. This causes the microfracture to occur deep within the glass itself, not just at the surface. By adjusting the focus depth, as well as the X and Y coordinates of the laser, a 3D engraving can be made.
2 0 mydadthecircusclown Block* I meant block