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Comment Re:He-3 is not all that abundant on the moon (Score 1) 67

Even if you had Helium 3, and it cost cents per kg to mine, process and get back to earth, does anyone have a reactor that could actually generate more electricity than it consumes?
Last time I checked, fusion reactors such as were barely making physics break-even, and very far from engineering break even let alone economic break even when they could actually be run at a cost that is competitive with alternative energy sources.

Best I have heard of so far was NIF, which has exceeded physics break even, but is still about two orders of magnitude away from engineering break even, let alone economic break even.

Comment Re:Today (Score 1) 76

If you and your wife had successfully conceived a child, but were told at 8 weeks that it had a rare severe genetic defect that would have severe mental incapacitation and likely not live past 20 and would need constant and expensive medical therapies and would you proceed with the pregnancy, knowing that you would not have the resources to afford additional children, or would you abort and try again, hopefully having a heathy child, knowing that in this case, you could actually afford to have two or three children?

Either way, there is a potential human that will not be born - either the one with severe mental defects who likely wont live past 20, or the ones you will not havewho could have lived full rich lives, because you can't afford a second or third child.

Comment Did I miss a headline? (Score 5, Insightful) 19

Have blue Origin managed to achieve orbit yet?
Seems like a big leap to go from sub-orbital to moon lander mission in 12 to 18 months, when it took NASA from 1958 to 1969 to do something similar, and Blue Origin has been around for 23 years but still hasn't achieved orbit yet.

Comment Re:Not surprising (Score 1) 144

There's a saying I heard - you can't outrun a bad diet.

From what I have researched the biggest killer for weight loss is getting rid of insulin spikes. If you have elevated insulin levels, it doesn't matter how hard you exercise, your body literally can not burn fat - your metabolic pathways stop it from being chosen as an energy source, and you burn any carbs and muscle instead if there's an energy deficit, and causes any excess energy to be stored as fat.
How do you stop insulin spikes? don't eat sugar, or simple carbs that break down into sugar quickly.

I personally have experienced this - I have seen my weight creep up about 10kg every decade, from about 85kg in my 20s to now topping out at 112kg (246 lb) at 53 in December last year, which for my 193cm (6'4") height doesn't look massively fat, but was still a big concern for me.During the day, my weight might do up and down by as much as 2kg, typically lightest in the morning and increasing during the day depending on what I eat, sweat and bathroom breaks, so weighing in at a consistent time like first thing in the morning after ablutions has been the most consistent and accurate way for me to track my progress.

In preparation for a ski trip in January, I joined a gym last November and did intense workout sessions with a mix of heavy cardio based spin sessions, some strength training with circuit training, and yoga for flexibility and core strength, 4 sessions a week for about 8 weeks. I felt overall better and stronger, but didn't seem to lose any weight.
Then immediately after the 2 week ski trip (which was awesome, and also cut about a kg of body weight), I fell ill with COVID, which I probably caught from someone when I was in transit. I lost most of my appetite, and was eating very little, but to help my immune system, I switched my diet to cut all sugar and simple carbs - ie. no baked goods, biscuits etc, not even honey or other sweeteners, though I still ate oranges and some other vitamin C rich fruit in small amounts, and added zinc supplements as well as general muti-vitamin. I also boosted my fluid intake to at least 2 litres of plain water a day - sometimes up to 3 or 4 litres, no soft drinks or cordial - I'd squeeze a lime into every other litre to make it more interesting to drink, and really needed this fluid intake to help break up the heavy congestion I was suffering from. I didn't go to the gym during this time, and haven't been back since. It took me about 12 days to get over Covid, which really sucked - continuous coughing, puss coming out my eyes from viral conjunctivitis for about 5 days, and hot and cold sweats. After recovering, I kept to the same diet, and started doing light exercise and bodyweight exercise like a set of 20 pushups or 40 squats, usually while waiting for my coffee machine to warm up and make my coffee in the morning.

In the last two months I have been able to shed 12kg, and am only a few kg away from my 93 kg target, which is what BMI says would be borderline overweight. Obviously if I become super buff and athletic, able to do 40 pushups, 10 chin-ups and bench press my body weight, and have no visible belly bulge, that BMI ratio might be inaccurate, but I'm not anywhere near being like that, so I figure it's fairly accurate for me, who can only now do 20 pushups and still struggle to do 1 chinup.

Typical breakfast now is 3 eggs, a slice of bacon and a big serve of something green - lettuce and tomato or spinach or kale (kale roasted in the oven with some olive oil) or broccoli, instead of toast.

I find I don't need lunch after that, and have a salad with some kind of protein for dinner - chicken, salmon tuna etc. if I need a snack, I grab an apple or small bowl of almonds or nuts - about 100g or so, and chew them slowly instead of scoffing them down - though overall, I haven't been getting hungry or feeling compelled to raid the cupboard or fridge between meals. I think that's because my insulin levels are no longer bouncing up and down form sugary or simple carb snacks.

I haven't been drinking alcohol either, which has really helped because typically I used to have a few beers or wine, a few nights a week with friends and family and basically inhale whatever snacks were out while doing so - usually cheese and biscuits, chips etc. That's where most of my bad calories came from before.

Might not work for everyone, but for me, certainly the magic bullet has been to just stop eating sugar and simple carbs, and replace it with lots of greens, either salad or veggies, with a little light exercise to hopefully tell my body to hang on to muscle while burning fat.

As of today I'm at 97kg, which is 15kg down from my peak weight in December, and only a few kg from my 93 to 95 kg goal weight zone.

After I reach my target weight, I'll be returning to the gym, eating pretty much the same but with a higher protein intake and gradually ramp up complex carbs like spuds and oats to support workouts. I will also gradually allow myself the occasional refined carbs like pizza or pasta, and occasional chocolate or dessert, while keeping an eye on how it's affecting my weight, and adjusting accordingly.
Overall, except for the covid part, the weight loss journey has been pretty easy hunger wise - I'm not hungry at all, though I am looking forward to eating the occasional meat pie, ice cream or pizza again.

Comment Re: disingenuous (Score 1) 365

All of this is solved by keeping sufficient distance between you and the car in front.

If you are 3 seconds behind the car in front, that 0.7 second reaction time still allows you enough room for your vehicle to stop, even if the car in front slams on the brakes to full lock.

At 100 kmh (60 mph) 3 seconds stopping distance is about 100 meters.
These are typical reaction distances, stopping distances and total distance required to come to a full stop for various speeds of a family vehicle. on a dry road.

speed react stop total
40km/h 17m 9m 26m
50km/h 21m 14m 35m
60km/h 25m 20m 45m
70km/h 29m 27m 56m
80km/h 33m 36m 69m
90km/h 38m 45m 83m
100km/h 42m 56m 98m
110km/h 46m 67m 113m

The best road safety rules that police could enforce is tailgating and making sure drivers left sufficient space, regardless of speed. Unfortunately there's an obsession in my country by road safety authorities about "every k over is a killer", with steep speeding fines being issued for even 2 or 3 kmh over the limit. (yes, I have been fined for this for doing 85 kmh in an 80 zone, at the bottom of a hill)
As a result a lot of drivers are obsessively looking at their speedo to make sure they aren't doing a few k over the limit, rather than making sure they aren't too close to the guy in front.
Now I use cruise control even when driving round town in traffic, to make sure I don't accidentally exceed the limit.

Comment Re:So how did the "human reviewer fail"? (Score 1) 95

Seat belt cams are not revenue raising. If drivers or their passengers are too dumb to wear a seatbelt they deserve a fine, because they are statistically going to suffer more injuries in a crash, and raise the cost of mandatory car insurance that we all have to pay.

Revenue raising is having a speed camera on the last 100m straight approach road to an onramp to a 100 km/h highway that has no intersections or turn offs, which is still only zoned 60 km/h then fining you for exceeding that limit, or having a speed camera at the bottom of a straight road that has a steep downhill then uphill again section, when there are no intersections driveways or turnoffs that could be a danger for you to be doing a few km over the limit at the bottommost part.

Comment Re:no way (Score 1) 123

The plug for the electric booster that nearly all solar thermal systems have, for when you have a week of rain.

The advantage of the electric solar / heat pump hot water setup is that you can use the electricity for other stuff when your hot water is hot enough, and if you have to boost the temperature it's a lot cheaper than the resistive heaters that most thermal solar boosters use.

Thermal solar panels are ridiculously expensive here in Australia - I can buy 6kw of electrical solar panels and an inverter for the same price as a 300L close coupled thermal solar, which range from about $4000 - $8000.

Comment Re:Integral always beats differential in the long (Score 1) 205

If you could lower the temperature of the planet by up to 1 degree by say, injecting sulphur into the upper atmosphere, that would still be a short term solution unless carbon emissions are reduced, because eventually the ever increasing amount of carbon will result in even higher temperatures, despite the geoengineering efforts. Even worse, if the geoengineering efforts should stop, either due to lack of resources (ie. running low on sulphur) or because it turns out the geoengineering has worse side effects ( like say, acid rain) then the temperature would rise even more catastrophically quickly.

The current effort that is being used, creating clouds from brine has the obvious possible side effect of causing salty rain, which if the clouds happened to blow over farmland and would be obviously not a great thing for agriculture.

The only real solution is to reduce carbon and methane emissions so we don't keep increasing the temperature further. The longer that is put off, the worse it will be for everyone, but particularly for those who can not afford to adapt how or where they live. I personally will be fine - I can easily afford to move to a house on a hill somewhere if my current coastal location starts to flood. Most people living in say, Bangladesh, or a corn farm in Iowa who depends on current rainfall patterns probably will not.

Comment Re:Who is paying whom here? (Score 3, Informative) 39

All the current shareholders will lose equity, and those shareholders who held shares for the specified period ( April 2018 - April 2019) will be paid some money.

There are currently about 13.5 billion google shares, so this $350 million payout will cost current shareholders about 2.7 cents per share.

There were about 15 billion google(ie. Alphabet) shares in 2018, so a $350 million settlement less $200 million for legal fees, should work out to something like $150 million divided amongst all those 15 billion shares, or about 1 cent per share.

Don't spend it all at once.

Comment Re:Two megawhats? (Score 1) 131

That's no excuse - everyone who finished high school should have learnt science basics like the difference between units for electrical power and electrical energy. Even a glance at your electrical bill would show you the correct units to use for energy. If you are a journalist reporting in that sector, it's your responsibility to at least refresh your knowledge of such basic concepts, or you are failing as a journalist to convey information accurately.

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