1. The only fresh foods that astronauts are allowed to take into space are pecan nuts.
Is it because they’re astro-nuts?
2. There are ten human body parts that are only three letters long; eye, hip, leg, arm, toe, ear, rib, jaw, lip, and gum.
Even ‘ten’ is three letters.
3. The daily heat output of the average man would boil 30 litres of freezing water.
Add another 10 litres if he watched Jessica Alba daily.
4. By 70 years old an average person will have shed 105 pounds of skin.
How much in dollars?
5. It takes 17 muscles to smile and 43 to frown so keep smiling it saves energy.
So constant frowning is a good exercise for the facial muscles.
6. Canned food was invented for the British Navy in 1813, but the first can opener wasn’t invented until 1870.
This may actually provide a clue to solving the puzzle - which came first, the chicken or the egg.
7. Large doses of coffee can be lethal. Ten grams, or 100 cups over 4 hours, is enough to kill the average human.
Not if it’s Starbucks, because no one can afford 100 cups.
8. Most lipstick contains fish scales.
So that’s why some women act fishy.
9. The average person walks the equivalent of twice around the world in a lifetime. I think that should read “The average non-American walks… “
10. Our eyes are always the same size from birth, but our noses and ears never stop growing.
You know what else I wished never stopped growing.
11. All the planets in the solar system spin anticlockwise except Venus, which spins the other way.
Ah… that explains why ‘women are from Venus.’
12. To make one kilo of honey, bees have to visit four million flowers, traveling a distance equal to four times around the Earth.
And that really explains why it’s so expensive to maintain a ‘honey’.
13. Approximately two thirds of a person’s bodyweight is water.
Really? I thought it would be Scotch whiskey.
14. If all your DNA strands were stretched out they would reach the moon 6000 times.
Oh I see… so to reach Jupiter I’d have to be 14 feet tall (and perhaps as wide as well).
15. Telephone inventor Alexandra Graham Bell never phoned his wife or mother because they were both deaf.
Maybe they just acted deaf.
16. If a cockroach were human sized it could run a mile in 20 seconds.
Big deal. My ex-girlfriend would run a mile in 20 seconds if she SAW a cockroach.
17. Skydivers accelerate to terminal velocity of 120 mph. Earth’s gravity is balanced by density of the air at this speed, so they can’t go any faster.
Not if they’re politicians — their hot air decreases the density.
18. The first electronic digital computer weighed 30 tons.
My laptop still weighs 50 tons at times.
19. Concorde holds two world speed records for commercial flights. In 1992, it circled the Earth from East to West in 32 hours, 49 minutes, and 3 seconds. Three years later Concorde flew West to East in 31 hours, 27 minutes, and 49 seconds.
Looks like the crew was in a hurry to leave the West.
20. Ocean waves can travel as fast as a jet aeroplane.
Or a jet aeroplane can travel as slow as an ocean wave.
译文:
20个科学现象及其深远影响
1.山核桃¾宇航员可带入太空唯一指定的新鲜食物。
2.眼睛、臀部、腿、胳膊、脚趾、耳朵、肋骨、颚、嘴唇、牙龈¾十种只有3个字母长的身体部位。
3.平均每人每天的散热量可使30公升的冰水沸腾。
4.70岁时，每个人的皮肤将脱落105膀的表皮。
5.微笑只需牵动17块面部肌肉，而皱眉则需43块之多。为节省能量，请保持微笑吧!
6.早在1813年就有人为英国海军发明了罐头，但直到1870年才发明了第一个开罐器。
7.大剂量地饮用咖啡可以致命。如饮用10克或100杯咖啡4小时以上足以结束一个人的生命。
8.大部分的唇膏都含有鱼鳞垢。
9.一个人一生步行的里程相当于环行世界两次。
10.我们眼睛的大小几乎同出生时相同，但鼻子和耳朵却在不断地生长。
11.除了金星顺时针旋转外，太阳系的其他行星都是逆时针旋转。
12.若酿造1千克的蜂蜜，蜜蜂需“拜访”400万朵花，行程相当于绕地球4圈。
13.人体三分之二的重量来自于水。
14.一个人所有DNA螺旋拉伸之后的长度是离月球长度的6000倍。
15.电话的发明者亚历山大•格雷汉姆•贝尔从不给他的妻子或母亲打电话，因为她们均无听力。
16.一只人体积那么大的蟑螂20秒可达1公里。
17.跳伞运动员最高速度为每分120英里，此时地心引力和空气密度均衡，所以他们的速度无法更高
18.第一台电子数字电脑重达30吨。
19.在商业式飞行中，协和式飞机的速度保持着两项世界记录。1992年，它自东向西环绕地球用时32小时49分3秒。三年后，它自西向东环绕地球仅用时31小时27分49秒。
20.海洋波的速度可快如一架喷气式飞机。