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todayilearned
Jul 04, 2020
TIL a Venus flytrap can count the number of times its victims touch the hairs on its leaves. One touch does nothing, two closes the trap, three primes the trap for digestion, five triggers the production of digestive enzyme. So, victims tell the plant to start killing it and how vigorously to do so.
bumbling fly
charles darwin
comenius university
dead fly
digestive efforts
digestive enzymes
digestive enzymes.after
electrical impulse
electrical impulses
fifth electrical impulse.the plant
first impulse
fly
flytrap traps.we start
gland cells
green stomach
hedrich’s latest study
inner surfaces of the traps
large fly struggles
life
long time
mystery
next morning
nutrient-poor swamps
open halves of the flytrap
outside world
own tissues.after
plant
plants
primes
production of digestive enzymes
rainer hedrich
second signal.the
sensory hairs
set of transporter enzymes
single impulse
so.the fly
so.the venus flytrap
spike of calcium ions
struggles of its prey
such false alarms
touch
trap
trap opens
trap snaps shut.the fly
traps
trap’s calcium levels
trigger hairs
unpublished work
venus flytrap
water
todayilearned
Jun 02, 2020
TIL: Someone hacked into a cable broadcast in Chicago in 1987 wearing a “Max Headroom” mask. Over 30 years later, the hacker still hasn’t been identified.
1980s
chicago
crime
culture
disruptions
documentary
drugs
entertainment
film
hacking
hijacking
internet
journalism
lgbtq
max headroom
motherboard
motherboard show
mystery
news
oddity
phreaking
politics
sci-fi
sex
signal interruption
tech
television
travel
tv
video
todayilearned
Jan 19, 2020
TIL that when the Hope Diamond is put under ultraviolet light it will continue to glow an orangish red color for almost 30 seconds after the light source is no longer present, longer than any diamond in existence.
curse
dead
deadly
death
diamond
history
hope diamond
jewel
jewelry
life
mystery
unexplained
todayilearned
Sep 02, 2019
TIL Garfield phones have been washing up on a beach in France for over 20 years. A shipping container fell off the cargo ship in a storm and the locals can do nothing about it.
beach
france
france beach provincial park
freight transport
garfield
garfield phones
mystery
plastic
shore
telephone
todayilearned
Jun 19, 2019
TIL: 100 crew members of the nuclear submarine USS Scorpion were scheduled to make its 1968 deployment. One sailor refused to go citing the sub’s dire need of maintenance. 99 sailors were killed when the sub sank in the Atlantic.
mystery
naval disaster
nuclear submarine
security
u.s. navy
uss scorpion
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