Technology that changes the rules

Medicine, materials, machines and cryptography, taken apart

Seven mechanisms that sound like magic until you watch them work: a vaccine printed for one patient, lithium taken from brine without evaporating a lake, a proof that reveals nothing, a roof that cools itself by radiating into space, encryption a quantum computer cannot unpick, a robot drawing the map of a room it has never seen, and a drug the blood–brain barrier carries across itself.

  1. 01 Interactive How a personalised mRNA cancer vaccine works Move the slider through five stages and watch how a tumour’s own mutations become the instructions that teach the immune system to find it.
  2. 02 Interactive Getting lithium out of brine: ponds versus direct extraction Move the slider through five stages and compare two ways of taking the same metal out of the same salt water.
  3. 03 Interactive Proving a secret without revealing it One slider walks through the stages, the other adds rounds. Watch certainty climb to almost total while the secret stays a secret.
  4. 04 Interactive Cooling a building by pointing it at space A coating that stays colder than the air around it, in full sun, drawing no power at all. One slider follows the heat from the sun to the far side of the atmosphere.
  5. 05 Interactive Why a quantum computer stops at a lattice Shor’s algorithm eats RSA in one move. The same machine gets almost nothing on a grid of points with a little noise added. One slider shows the difference.
  6. 06 Interactive How a robot draws the map of a room it has never seen A lidar returns a few hundred dots per sweep and no idea where it is. One slider walks from that cloud to a floor plan with the robot standing in the right spot.
  7. 07 Interactive How a drug is smuggled past the blood–brain barrier The brain refuses almost every drug molecule, and it is right to. One slider follows the trick the labs are trying instead: wrap the molecule in a bubble the wall already knows how to carry.

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