Robot cats could care for older Britons

Related: Innovation

1. Innovation
   1. Smart bullet ready to leave the lab, hit target more than 1 mile away
   2. Are laser-firing drones the weed killers of the future?
   3. Your cotton T-shirt could soon charge your phone
   4. Classic 1937 steam engine soon to run carbon-free
   5. Afraid of needles? Futuristic syringe doesn’t need them
2. Tech & science
   1. 16-year-old sets off buzz over 325-year-old physics
   2. Astronauts to spend Memorial Day unpacking private space capsule
   3. Grill science: 5 sizzling tips for a tasty Memorial Day
   4. 2-minute expert: How to avoid blurry photos
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