Latest David H. Gracias Stories
In experiments that pave the way for tiny mobile surgical tools activated by heat or chemicals, Johns Hopkins researchers have invented dust-particle-size devices that can be used to grab and remove living cells from hard-to-reach places without the need for electrical wires, tubes or batteries. Instead, the devices are actuated by thermal or biochemical signals.The mass-producible microgrippers each measure approximately one-tenth of a millimeter in diameter. In lab tests, they have been...
- A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
- Clothing, especially sumptuous clothing; equipment; outfit.
- To cover with a caparison, as a horse.
- To dress sumptuously; adorn with rich dress.