Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Submission + - SPAM: The Challenge of Having Poisonous Arsenic Containing Books

fedor writes: Poisonous books in library collections with public access pose a specific challenge due to the fact that library staff and readers handle collection items intensely. (...)
Per participant three urine samples were taken to establish a base line and the potential exposure to arsenic whilst working with the collection. One sample was taken at the beginning and one at the end of the first workday, followed by the last sample at the end of the last workday. Urine samples were analysed for total arsenic.
(..)It is now assumed that arsenic could be present in a significant part of the collection dating up to the 1950s. Well over half a million of items would have to be checked to identify all items.

Link to Original Source

Comment 0.0146 seconds | ongoing performance (Score 1) 53

https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.julia-janssen.nl%2F0... ‘0.0146 seconds’ is a collective read out loud performance in which everybody can participate – An act against the exploitation mechanics of the data economy. For the sake of control over personal information.

Comment Re:You can't deflect what you can't see (Score 2) 120

Calculating the orbits of asteroids is indeed not accurate enough to calculate the chance of impact, but it is possible to rule out an impact. The majority of the thousands of asteroids found today are not harmless. Most of them won't cross earth's orbit in near (= hundreds of years) future, will leave the solar system or are small enough to burn in earth's atmosphere. There are, however, potentially hazardouds asteroids for which collision can't be ruled out. Odds are that they won't collide, but there may be a small chance (e.g. 0.2 % chance of impact in 20 years). "Pushing" these asteroids a couple of meters to the left now, results in a different orbit which reduces or completely takes away the impact risk a couple of decades later. That's the idea. Diverting asteroids this way won't keep us safe, because the real danger comes from asteroids we have not discovered yet (so we don't have orbit-data), comets and other objects coming from the direction of the sun.

Slashdot Top Deals

"One day I woke up and discovered that I was in love with tripe." -- Tom Anderson

Working...