NOTE: Homework has never been recorded as the cause of death of a 13 year old.
Read longer version of Hugo Does His Homework here.
Posts Tagged ‘death’
Maths News: Volcano Survivor 2
May 8, 2018Kilauea erupts in Hawaii MAY 2018.
The amazing maths of volcano eruptions.
Once lava flows are established new RIVERLETS can run on top of the original lava flow at great speed.
The fastest Lava flows recorded were in Hawaii in 1950 when Mauna Loa erupted. The lava traveled at 6 miles (10 kilometers) per hour through thick forest. But once the lava flows became established and good channels developed, the lava in the channels was flowing at up to 60 miles/hour (97 kph)
Can you out run a lava flow?
You are 2 km from the volcano rim and start running.
VL = 97 kph = 1.6 km per minute (k/min)
= 60 mph
VH = 18 kph = 0.3 km/min
= 11.2 mph (miles per hr )
GRAPH:
How long will it take for the lava to catch you?
SIMULTANEOUS EQNS:
How long will it take for the lava to catch you?
The Terrifying Maths of Running from a Bear … Metric Units
July 17, 2017METRIC UNITS below. USA UNITS here.
BEAR STATISTICS
Grizzly Bear
Weight: 250kg
Height: 250cm
Top Speed: 56kph = 16 m/sec
More bear stats here.
Brown Bear
Weight: 680kg
Height: 250cm
Top Speed: 35kph = 10m/s
More bear stats here.
Comparing these speeds to the fastest man on earth, Usain Bolt:
Usain Bolt:
Top speed: 243kph = 12m/s
So Usain Bolt could out run a Brown Bear but NOT a Grizzly!
Bears are NOT as dangerous as:
In fact more Americans die choking on their own vomit each year than a re killed by bears.
More death stats here.
But bears are very fast so Park Rangers recommend the following survival tactics:
More bear survival info here.
REF: Dog helps save hikers after grizzly chases them for 20 minutes here.
The Terrifying Math of Running from a Bear … USA Units
July 17, 2017USA UNITS below. METRIC UNITS here.
BEAR STATISTICS
Grizzly Bear
Weight: 550 lb
Height: 8’ 2”
Top Speed: 35 mph = 51 ft/s
Brown Bear
Weight: 1,500 lb
Height: 8’ 2”
Top Speed: 22 mph = 32 ft/s
Comparing these speeds to the fastest man on earth, Usain Bolt:
Usain Bolt:
Top speed: 27 mph = 40 ft/s
Bears are not dangerous:
………………………………………………………………………
In fact, more Americans die each year from choking on their own vomit than are killed by bears.
More death stats here.
Nevertheless, bears are very fast. So you can see why Park Rangers offer the following advice:
More information at Mountain Nature.
The reason for waiting until the bear is 15 ft away is to make sure the spray doesn’t disperse in the air. If the Pepper Spray is too spread out it will not stop the bear.
Ref: Dog helps save hikers after grizzly chases them for 20 minutes.
Dangerous Maths 1:Young drunk dead
August 26, 2015
Statistics for alcohol consumption are tricky. Binge drinking gets confused with heavy drinking. If you want to stay young go to the UK. They think anyone under 35 is a youth! Some stats separate Male and Female drinking habits. Some don’t. And legal drinking ages vary. Canada is one crazy place. It has different legal drinking ages in different parts of the country.
Legal Drinking Age:
The Maths
What we are working on here is reading maths data. No lectures. The numbers speak for themselves. 
Graph source here
The Challenge
Find the following information from data below. Percentage of Year 12 students or 18 year olds who binge drink in each country below.
1. Australia
Graph Source here.
2. Canada
Graph Source here.
3. UK
Graph Source here
4. USA
Graph source here
Answers- Young drunk dead
Use these % to create a bar graph comparing countries. (Answer below)
Graph drawn using Create a Graph website
Alcohol related death stats over lap other stats including death involving cars, motorcycles, bicycles, skateboards, jet skis, quad bikes, drowning, diving, stairs, supermarket trolleys and even high heels. 
photo source Daily Mail
Alcohol Related Youth Death Statistics
UK1: 314
Australia2: 260
Canada3: 3,500
USA4: 4,358
- 15-34 years for 2011. Source
- 15-24 years average 1990-2002 Source
- Under 18 years of age. 1996 It is believed that as many as 83 percent of teenagers in Canada consume alcohol. Back in 1996, underage drinking was responsible for 3,500 deaths and 2,000,000 injuries. A 2002 survey found that 20 percent of eight graders had consumed alcohol within the previous month. Source
- 4,358 people under age 21 die each year from alcohol-related car crashes, homicides, suicides, alcohol poisoning, and other injuries such as falls, burns, and drowning. Source
These countries have different populations (See post below). USA population is 15 times Australia’s. 260 x 15 = 3,900. So the Aussie and US stats are in the same ball park even though the stats have been collected for different age ranges. But look at Canada. The USA population is about 9 times Canada’s. 4,358 ÷ 9 = 484 deaths. This death statistic for Canada is 10 times larger than the USA statistic per head of population. Meanwhile, the population of Canada is 1 1/2 or 1.5 times Australia’s. 260 x 1.5 = 390. Once again, the Canadian statistic is out by a factor of 10. What’s going on here?
The Bar Where You’re Too Afraid to Get Smashed
Mathspig is a party pig. But why does anyone drink themselves senseless? Many reasons, but one is they’re bored. Now here is a bar in Mathspig’s home town, Melbourne, where you better stay sober. 
Break out of prison in Trapt Bar. You’re in prison, you’re innocent, and no one believes you. You plot an escape with the other prisoners–because unless you break free soon, you’ll all face an unspeakable death (this prison is off the charts). At Trapt Bar and Escape Rooms, you and your teammates have 45 minutes to find clues, solve puzzles and escape before…well…let’s spare you the gruesome details. 
Dangerous Maths 2: Death by Snake, Spider, Quad bike, Kangaroo, Raccoon and Vomit
August 7, 2015This post is really a PR exercise for sharks. We fear them. We’re horrified by the thought of being eaten alive!!!. We only have to hear the sound track from JAWS to feel the fear.
Why do we fear sharks? Look at the numbers. REALLY. Show your students. What about stairs??? Quad bikes? Chairs? Bees? That’s when you should feel the fear!!! We are irrational beings. This is why we need maths. We can make rational decisions using maths. There is also a safety message here. The maths speaks for itself. We won’t hammer it.
THE MATHS:
There is lots of maths you can do with these tables.
- Bar Graphs
- Pie Charts
- Ratios (What’s the ratio of death by Snake to Quad Bike?)
- Fractions (Show death by jet ski to falling down stairs as a fraction)
- Percentages
- Powers to the base 10. How many deaths occur in each country per 100,000 or 1 x 105 head of population for, say, Quad bikes or ATVs? We can use these numbers to compare death rates and find out how dangerous riding a Quad bike is in each country.
……..Population Data:
……..Aust…23 million = 23 x 106
……..USA…319 million = 319 x 106
……..Canada…35 million = 35 x 106
……..UK…64 million = 64 x 106
But we’re doing this for the SHARKS!!! 
- Cyclists. 2. emergency lanes 3. fell off a chair 4.QUAD BIKES. 5. Horse, donkey. 6. buses 7. Cow, bull. 8. ice skates, skis or skateboards. 9. Venemous snake 10. kangaroo 11. bee 12. emu 13. Jet ski 14. Shark 15. Crocodile
1. Quad Bike or ATV: In 2007, 107 children younger than 16 were killed on ATVs. 2. Cyclists 3. choke on vomit 4. Cats, cows, horses, pigs, raccoons. 5. Bees, wasps 6.PWC or Jet Ski 7. Lightning 8. Xmas tree fires 9. Snowboard 10. Venomous Spider 11. Scorpions 12. Venomous Snakes , lizards. 13.Crocs & gators 14. Shark 
- ATV Quad Bike 2. Canoe 3. Kayak 4. PWC or Jet Ski 5. Unpowered inflatable 6. Avalanches or landslides. 7. Lightning 8. Toboggan 9. Moose –Car collision 10. Bears (All Nth America) 11. Rattle Snake 12. Wolves 13. Shark
- falling down stairs. 2. Cyclists. 3. Choke on vomit 4. Falling off Chairs 5. QUAD BIKE or ATV 6. Buses 7. Struck by cow, horse, other mammal 8. hornets, wasps, bees. 9. PWC or jet ski .10. Parachutists. 11. Skateboards, ice skates, skis 12. Canoe. 13. Shark
Volcano Survivor 2: Mauna Loa Volcano, Hawaii, 1950
November 7, 2014Once lava flows are established new RIVERLETS can run on top of the original lava flow at great speed.
The fastest Lava flows recorded were in Hawaii in 1950 when Mauna Loa erupted. The lava traveled at 6 miles (10 kilometers) per hour through thick forest. But once the lava flows became established and good channels developed, the lava in the channels was flowing at up to 60 miles/hour (97 kph)
Can you out run a lava flow?
You are 2 km from the volcano rim and start running.
VL = 97 kph = 1.6 km per minute (k/min)
= 60 mph
VH = 18 kph = 0.3 km/min
= 11.2 mph (miles per hr )
GRAPH:
How long will it take for the lava to catch you?
SIMULTANEOUS EQNS:
How long will it take for the lava to catch you?
