The Week In Numbers: Lightweight Lunar Rovers, Forgotten Ricin Bottles, And A Talking Atom We Cannot Hear

Apollo 17's lunar rover on the Moon

NASA

480: weight in pounds of the Lunar rover on Earth. On the Moon, it only weighs a light 80 pounds.

13: number of lactic acid bacteria stored in bees' honey stomachs that produce antimicrobial substances. Some researchers believe these bacteria can be used to fight antibiotic resistance.

25: length, in days, of a special nutritional regimen biohackers are using to change their vision. They believe that replacing their regular consumption of vitamin A with vitamin A2, they can see infrared light with the naked eye.

Biological samples in a freezer.

Nick Smith/ALSPAC via Wikimedia Commons

85 to 100: age, in years, of forgotten bottles of ricin found in an NIH lab search. The discovery occurred just one week after the NIH sent a memo to American scientists asking them to check for vials of pathogens.

40: number of 3-D printed polymer parts used to construct this drivable plastic car. The engineers working on the car hope to test drive it sometime next week.

Design for the 3-D Printed Strati Car

Local Motors on Instagram

14: different species of plants grown in fake lunar and Martian soil. Martian soil simulant was found to be even better than some Earth soils for supporting plant life – yay!

1 to 2.5: time, in milliseconds, it takes for new high-tech headlights to react to cars, raindrops, street signs and other stimuli in the surrounding area. Created by researchers at Carnegie Mellon University, these headlights can cut through rain and illuminate without blinding other drivers.

A new, detailed map of the Stonehenge area, including the newly-discovered "super-henge"

© LBI ArchPro, Wolfgang Neubauer

4,900: circumference in feet of a buried 'super henge' found underneath the prehistoric Stonehenge monument. The super henge holds dozens of new features, including 10-foot pillars and 17 newly discovered ritual monuments.

100,000: number of ozone molecules that can be ripped apart by one chlorine atom. Researchers have found that by reducing the chemicals that damage the ozone, such as chloroflurocarbons and halons, the ozone layer may have thickened as a result.

4.8: frequency, in gigahertz, of a sound produced by an artificial atom. In musical terms, that translates to a D28, or 20 octaves above the highest note on a piano.

Atom Sound Capture

An artificial atom generates sound waves consisting of ripples on the surface of a solid.Philip Krantz, Krantz NanoArt