时间:2019-01-23 作者:英语课 分类:探索与发现2013年


英语课

 So we are going to do a little test. We’re going to turn on the lawn mower 1 and use this DB meter to find out exactly how loud it is. Then we’re gonna get a pound of C4, put the lawn mower on top of it, blow it up and find out how loud the boom is. 


 
Because actions speaker louder than words, Grant fires her up and Kari gets a reading at ground zero. 
 
We have about 90.
 
And then again, 100 feet away.
 
What do you got?
 
We’re sticking at about 40. It’s not even louder than the ambient noise around here.
 
So with the baselines in the bag, the bomb techs brace 2 for the boom. But how will C4’s crack compare?
 
Ok, Kari Byron. Are you ready?
 
I’m ready.
 
Ok, let’s do this.
 
This is L is for loud in three, two, one—fire!
 
It sure was a roar. But as for data, well, the near mic got maimed and the far one maxed out.
 
That was loud.
 
In fact, it was so loud, maxed out the meter.
 
Yeah, I had a feeling that was going to happen. 
 
Meaning all we know is that the dim was at least 130 db, making it louder than the blast of a jet. Meanwhile, as Kari is about to confirm, M is for movies.
 
M is for movies.
 
What does that have to do with explosions?
 
We can’t do a Mythbuster A to Z explosions without taking movie to the test, because there is one thing we learn about Mythbuster that Hollywood will always choose style over substance. 
 
Yeah, you know there are still so many classic mistakes that Hollywood make. 
 
Like cars going over cliffs always explode? 
 
That’s negative on the explosion.
 
Bummer.
 
Reality makes a crappy special effects crew.

n.割草机
  • We need a lawn mower to cut the grass.我们需要一台草坪修剪机来割草。
  • Your big lawn mower is just the job for the high grass.割高草时正需要你的大割草机。
n. 支柱,曲柄,大括号; v. 绷紧,顶住,(为困难或坏事)做准备
  • My daughter has to wear a brace on her teeth. 我的女儿得戴牙套以矫正牙齿。
  • You had better brace yourself for some bad news. 有些坏消息,你最好做好准备。
学英语单词
a.n.z.
accident hazard
accidental accentuated
aggradation plain
airgas
angularoscillation
balance of mutual accounts
be seize of
bedding fissility
biochemical data compression
boss rings
breunerite
busemann parabolic formula
cabalistical
cervus dama
chain-initiating
charmbracelet
chlorobenzene dye
chordocarcinoma
citing
colchicum root
Coleodontidae
desid
diptilomiopus cuminis
Drumkeeran
ects
emanations security
exit direction
Ezinepazar
film adhesion
first level interrupt handler
gang-girls
genus cajanuss
Giebelstadt
glassceramic
grasshopper pies
hand change over valve
head sea
Highlands, The
hind toe
hitching-bar
hits the sack
impaction of rumen
jadotville (likasi)
ladle well
LAF bid and offer rates
Logovskiy
low silhouette
MacNutt
Malayo-Polynesian family
manganese black
MCEC
MEDSTAT
mimiviruses
moderator structure
mouth illuminator
nails it
notationist
Nuclear Energy Research Bureau
one-gigahertz
ore processings
oversystematises
paleobotanic province
parabolic profile
parathyroid hormone infusion test
parelectronomy
parking brake handle grip
participable
parvocellular layer
pasc
passen
phase of line
Pilea japonica
Poiseuille's formula
prime record key
Prunus cornuta
Przybiernów
reexamining
regraded
relatedness assessment
renal vein renin
residual heat of reactor
roller type disk plow bearing
rolling disc planimeter
rotating biological contactor
rust-inhibitive primer
sawara cypress
set oneself right with someone
smoke exhaust
sonic boom carpet
stuffed up
supramoly
tectonic joint
tetanizations
tumbler bolt
Umedpur
ups and downs
vasodiator
verbal presentation
vertebra spuria
wanderword
wolfgangsees