用打火機測黃金真假！這方法太厲害，一看就知道真不真【百變小廚坊】#辨別黃金 #黃金真假 #百變小廚坊 #生活妙招 #實用知識
百變小廚坊 VS 龍兒美食 Magic Kitchen
[{'start': '0.266', 'end': '1.600', 'text': 'Hello everyone, I am Long Er. It'}, {'start': '1.600', 'end': '4.066', 'text': 'turns out that it is so easy to distinguish real gold from fake gold. You'}, {'start': '4.166', 'end': '7.466', 'text': 'only need to use a lighter to easily distinguish it. Have you'}, {'start': '8.266', 'end': '11.666', 'text': 'ever been happy but also uneasy when choosing gold,'}, {'start': '14.900', 'end': '17.066', 'text': 'worried that you spent a lot of money'}, {'start': '17.100', 'end': '20.800', 'text': 'but bought fake gold with only good appearance?'}, {'start': '21.233', 'end': '23.566', 'text': 'Usually when we buy gold,'}, {'start': '23.566', 'end': '25.400', 'text': 'whether it is for ourselves'}, {'start': '25.633', 'end': '27.966', 'text': 'or for gifts, the'}, {'start': '28.000', 'end': '30.466', 'text': 'authenticity of gold is very important.'}, {'start': '31.000', 'end': '33.233', 'text': 'If you are still worried about choosing gold and'}, {'start': '33.233', 'end': '33.633', 'text': 'don’t know'}, {'start': '33.633', 'end': '36.566', 'text': 'how to distinguish the authenticity of gold,'}, {'start': '37.066', 'end': '38.366', 'text': 'then don’t worry.'}, {'start': '38.566', 'end': '40.666', 'text': 'Today I will share with you a few tips'}, {'start': '40.666', 'end': '43.033', 'text': 'to help you easily distinguish the authenticity of gold.'}, {'start': '43.400', 'end': '46.700', 'text': 'Gold has been a symbol of nobility since ancient times.'}, {'start': '47.033', 'end': '48.600', 'text': 'Not only is it beautiful in color, it'}, {'start': '48.633', 'end': '51.166', 'text': 'also looks very noble when worn.'}, {'start': '51.300', 'end': '54.500', 'text': 'Therefore, many people like to buy gold jewelry,'}, {'start': '55.266', 'end': '56.466', 'text': 'but at the same time.  There are a lot of real and'}, {'start': '56.466', 'end': '59.500', 'text': 'fake gold on the market.'}, {'start': '59.566', 'end': '63.100', 'text': 'Even many professionals cannot tell the difference. The'}, {'start': '63.566', 'end': '65.466', 'text': 'first method that many people think of'}, {'start': '65.466', 'end': '69.300', 'text': 'is to use a magnet to distinguish the authenticity of gold.'}, {'start': '73.033', 'end': '76.466', 'text': 'So why can a magnet distinguish the authenticity of gold?'}, {'start': '78.100', 'end': '81.600', 'text': 'In fact, gold itself cannot be attracted by a magnet'}, {'start': '81.600', 'end': '84.800', 'text': 'because gold is a non-magnetic metal.'}, {'start': '84.800', 'end': '87.466', 'text': 'Its atomic structure and physical properties'}, {'start': '87.600', 'end': '90.000', 'text': 'determine that it does not have magnetism.'}, {'start': '90.100', 'end': '92.400', 'text': 'So, in general, we'}, {'start': '92.400', 'end': '95.500', 'text': 'can use a magnet to distinguish the authenticity of gold.'}, {'start': '96.266', 'end': '97.866', 'text': 'Although this statement is correct, it is'}, {'start': '97.866', 'end': '99.066', 'text': 'not comprehensive.'}, {'start': '99.500', 'end': '101.466', 'text': 'However, if a magnet'}, {'start': '101.500', 'end': '104.866', 'text': 'can attract the gold we bought, we'}, {'start': '105.066', 'end': '106.833', 'text': 'can be sure that'}, {'start': '106.833', 'end': '109.433', 'text': 'this gold is definitely not pure gold,'}, {'start': '109.433', 'end': '112.600', 'text': 'or it is mixed with many'}, {'start': '112.600', 'end': '115.866', 'text': 'other metals that can be attracted by our magnet,'}, {'start': '116.200', 'end': '118.900', 'text': 'so that such gold can be attracted.'}, {'start': '119.066', 'end': '121.300', 'text': 'So if it can be attracted by a magnet, it'}, {'start': '121.600', 'end': '124.166', 'text': 'can be guaranteed that it is not pure gold.'}, {'start': '124.566', 'end': '127.400', 'text': 'But if the'}, {'start': '127.700', 'end': '129.400', 'text': 'magnet we bring with us'}, {'start': '129.400', 'end': '133.700', 'text': 'can easily attract it when we buy gold,'}, {'start': '133.866', 'end': '136.700', 'text': 'or if it hangs on our magnet'}, {'start': '136.700', 'end': '138.466', 'text': 'for a long time without falling off, it'}, {'start': '138.633', 'end': '141.466', 'text': 'means that it is definitely not pure gold.'}, {'start': '141.866', 'end': '143.633', 'text': 'At least it must contain'}, {'start': '143.633', 'end': '146.833', 'text': 'other metals that can be attracted by a magnet.'}, {'start': '147.033', 'end': '149.900', 'text': 'But it does not mean that it does not contain gold. It is possible that the'}, {'start': '150.000', 'end': '153.166', 'text': 'gold content is very low.'}, {'start': '153.600', 'end': '154.666', 'text': 'So, when you'}, {'start': '154.666', 'end': '156.300', 'text': 'encounter'}, {'start': '156.300', 'end': '159.000', 'text': 'gold that can be attracted by our magnet,'}, {'start': '159.000', 'end': '161.966', 'text': 'you must be more careful.'}, {'start': '162.400', 'end': '162.800', 'text': 'Of course,'}, {'start': '162.800', 'end': '165.833', 'text': 'this does not mean that it'}, {'start': '165.833', 'end': '167.500', 'text': 'must be real gold if it cannot be attracted by a magnet,'}, {'start': '167.833', 'end': '170.833', 'text': 'because these complex counterfeiting methods'}, {'start': '170.833', 'end': '173.966', 'text': 'may make fake gold not show magnetism in magnetic tests.'}, {'start': '176.200', 'end': '178.433', 'text': 'Like the two earrings on my hand,'}, {'start': '178.466', 'end': '180.000', 'text': 'they are made of alloy'}, {'start': '180.500', 'end': '182.566', 'text': "and don't even contain iron."}, {'start': '182.566', 'end': '185.466', 'text': "Because no matter how hard I use a magnet to attract them, they won't come up."}, {'start': '185.866', 'end': '186.433', 'text': 'So'}, {'start': '186.433', 'end': '190.000', 'text': 'using a magnet to identify the authenticity of gold is'}, {'start': '190.400', 'end': '193.000', 'text': 'not a particularly comprehensive way to judge'}, {'start': '193.000', 'end': '195.100', 'text': 'whether it is real gold or fake gold. The'}, {'start': '195.500', 'end': '197.100', 'text': 'second point is to look at the color.'}, {'start': '197.500', 'end': '199.266', 'text': 'Now we know that many 2-yuan stores and'}, {'start': '199.266', 'end': '199.866', 'text': '10-yuan stores'}, {'start': '199.866', 'end': '203.700', 'text': 'also have some golden jewelry that looks like gold jewelry. At'}, {'start': '205.666', 'end': '209.233', 'text': "first glance, you can't tell whether it is real or fake. It"}, {'start': '209.600', 'end': '212.566', 'text': "can be said that as long as it doesn't fade when worn on the body, it is"}, {'start': '212.800', 'end': '215.400', 'text': 'difficult to tell whether it is real or fake from the appearance. In'}, {'start': '215.400', 'end': '217.066', 'text': 'fact, if we compare carefully, there'}, {'start': '217.066', 'end': '219.300', 'text': 'is still a difference in color.'}, {'start': '219.800', 'end': '222.766', 'text': 'Generally, the color of real gold is darker,'}, {'start': '222.766', 'end': '226.233', 'text': 'while the color of fake gold is lighter.'}, {'start': '226.633', 'end': '227.866', 'text': 'This method is simple,'}, {'start': '227.866', 'end': '230.500', 'text': 'but it is not suitable for all friends.'}, {'start': '230.700', 'end': '232.700', 'text': 'For more professionals, it'}, {'start': '232.700', 'end': '234.500', 'text': 'may be easier to identify.'}, {'start': '234.566', 'end': '237.366', 'text': 'But for our non-professional friends, it is very laborious and unreliable to'}, {'start': '237.600', 'end': '240.633', 'text': 'judge the authenticity of gold only from its color. The'}, {'start': '244.300', 'end': '245.300', 'text': 'second method is to'}, {'start': '245.300', 'end': '247.033', 'text': 'burn it with a lighter.'}, {'start': '247.233', 'end': '248.066', 'text': 'We all know that'}, {'start': '248.066', 'end': '250.666', 'text': 'there is a saying that real gold is not afraid of fire.'}, {'start': '250.766', 'end': '253.900', 'text': 'Our gold can be burned with fire to distinguish the authenticity. This'}, {'start': '254.033', 'end': '257.033', 'text': 'is mainly based on the chemical stability'}, {'start': '257.033', 'end': '258.400', 'text': 'and physical properties of gold. It'}, {'start': '258.633', 'end': '262.433', 'text': 'is not easy to oxidize in a high temperature environment.'}, {'start': '262.766', 'end': '265.066', 'text': 'So if it is real gold,'}, {'start': '265.200', 'end': '267.866', 'text': 'we use the fire of a lighter to burn it, and there'}, {'start': '267.866', 'end': '270.400', 'text': 'will be no change.'}, {'start': '270.500', 'end': '272.600', 'text': 'But if it is fake gold,'}, {'start': '272.966', 'end': '274.433', 'text': 'we use fire to bake it, and'}, {'start': '274.433', 'end': '276.800', 'text': 'its surface will immediately turn black,'}, {'start': '276.800', 'end': '280.000', 'text': 'or other oxidation and discoloration reactions will occur.'}, {'start': '283.433', 'end': '285.266', 'text': 'And the burnt black color cannot be wiped off no matter'}, {'start': '285.266', 'end': '287.500', 'text': 'how you rub it.'}, {'start': '290.633', 'end': '292.466', 'text': 'Look at it after it is burned black. The'}, {'start': '292.466', 'end': '295.266', 'text': 'color on it has been completely oxidized.'}, {'start': '295.433', 'end': '297.600', 'text': 'No matter how we wipe it with a tissue,'}, {'start': '299.233', 'end': '300.766', 'text': 'it is still black.'}, {'start': '302.400', 'end': '305.833', 'text': 'And the color is even darker than the whole process of roasting it with fire. If'}, {'start': '308.233', 'end': '311.466', 'text': 'we roast real gold with fire,'}, {'start': '311.466', 'end': '314.500', 'text': 'its surface will not change.'}, {'start': '315.200', 'end': '318.233', 'text': 'So using fire to distinguish the authenticity of gold'}, {'start': '318.233', 'end': '320.566', 'text': 'is a very desirable method.'}, {'start': '320.833', 'end': '321.966', 'text': 'Although this method'}, {'start': '321.966', 'end': '324.766', 'text': 'can distinguish the authenticity of gold very well, it is'}, {'start': '324.833', 'end': '327.266', 'text': 'not suitable for all gold.'}, {'start': '327.600', 'end': '328.866', 'text': 'Some gold jewelry is'}, {'start': '328.866', 'end': '331.900', 'text': 'inlaid with various other pearls'}, {'start': '331.900', 'end': '333.766', 'text': 'or other jewelry.'}, {'start': '334.200', 'end': '336.000', 'text': 'Gold is not afraid of fire,'}, {'start': '336.300', 'end': '339.366', 'text': 'but it cannot withstand other treasures that are not afraid of fire.'}, {'start': '339.433', 'end': '342.866', 'text': 'So if we use fire to identify'}, {'start': '342.866', 'end': '346.100', 'text': 'gold inlaid with other substances,'}, {'start': '346.233', 'end': '348.500', 'text': 'this method is not very desirable.'}, {'start': '348.833', 'end': '350.433', 'text': 'So'}, {'start': '350.433', 'end': '353.100', 'text': 'what method should we use to identify this kind of gold?'}, {'start': '353.233', 'end': '355.966', 'text': "Then let's take a look at the third method. The"}, {'start': '356.200', 'end': '358.866', 'text': 'third method is to use a thin needle,'}, {'start': '359.066', 'end': '360.600', 'text': 'whether it is an iron needle or an'}, {'start': '360.600', 'end': '362.600', 'text': 'embroidery needle.'}, {'start': '362.966', 'end': '366.666', 'text': 'We find an inconspicuous place on the jewelry we bought and'}, {'start': '367.000', 'end': '368.866', 'text': 'use this needle to scratch it.'}, {'start': '369.100', 'end': '370.966', 'text': 'If it is gold, it is'}, {'start': '370.966', 'end': '373.700', 'text': 'easier to leave scratches on it.'}, {'start': '373.866', 'end': '378.300', 'text': 'This is because real gold is usually of higher purity'}, {'start': '378.300', 'end': '380.800', 'text': 'and relatively soft. At this'}, {'start': '380.800', 'end': '382.800', 'text': 'time, we use a needle to scratch it,'}, {'start': '382.800', 'end': '384.966', 'text': 'but we must scratch it with a little force,'}, {'start': '385.100', 'end': '387.400', 'text': 'and it will definitely'}, {'start': '387.566', 'end': '390.400', 'text': 'leave a clear and visible scratch on the surface of the gold.'}, {'start': '390.466', 'end': '392.366', 'text': 'But if there are some videos,'}, {'start': '392.366', 'end': '393.900', 'text': 'we scratch it lightly'}, {'start': '396.100', 'end': '398.666', 'text': 'and it will leave marks and produce a lot of debris.'}, {'start': '398.866', 'end': '401.100', 'text': 'Like the video in my hand,'}, {'start': '401.233', 'end': '402.900', 'text': 'it is fake gold,'}, {'start': '403.300', 'end': '405.600', 'text': 'because we scratch it lightly with a needle,'}, {'start': '405.600', 'end': '408.233', 'text': 'it will leave many scratches'}, {'start': '408.233', 'end': '411.766', 'text': 'and at the same time, it will produce some debris.'}, {'start': '411.900', 'end': '413.866', 'text': 'This is obviously fake gold. Although'}, {'start': '414.233', 'end': '415.700', 'text': 'our real gold is'}, {'start': '415.700', 'end': '417.366', 'text': 'relatively soft, it'}, {'start': '417.466', 'end': '420.666', 'text': 'also needs a little force to scratch it, so that'}, {'start': '420.666', 'end': '423.100', 'text': 'it will leave a little scratch.'}, {'start': '423.266', 'end': '425.100', 'text': 'And during the scratching process,'}, {'start': '425.100', 'end': '429.100', 'text': 'no debris will be generated. The'}, {'start': '429.433', 'end': '432.033', 'text': 'fourth point is the sound identification method.'}, {'start': '432.233', 'end': '434.300', 'text': "Let's listen to the sounds of these two metals."}, {'start': '438.100', 'end': '440.466', 'text': 'Yes, the two sounds are completely different. The'}, {'start': '440.633', 'end': '443.766', 'text': 'sound of this metal is harsher'}, {'start': '443.766', 'end': '446.600', 'text': 'and its sound is particularly crisp,'}, {'start': '449.700', 'end': '452.066', 'text': 'but the sound of this ring'}, {'start': '452.066', 'end': '453.633', 'text': 'is duller.'}, {'start': '454.000', 'end': '456.466', 'text': 'So why does this happen?'}, {'start': '457.866', 'end': '460.400', 'text': 'Which one is real and which one is fake?'}, {'start': '460.400', 'end': '462.866', 'text': 'I believe everyone has a clear idea. I'}, {'start': '462.966', 'end': '464.833', 'text': 'have told you before that'}, {'start': '464.966', 'end': '468.866', 'text': 'real gold has a softer and denser texture, a'}, {'start': '468.966', 'end': '470.366', 'text': 'higher density, and a'}, {'start': '470.433', 'end': '472.233', 'text': 'very compact structure.'}, {'start': '472.700', 'end': '476.666', 'text': 'When we drop it from a high place'}, {'start': '476.766', 'end': '479.500', 'text': 'and the collision sound with other objects, it sounds'}, {'start': '479.633', 'end': '482.866', 'text': 'dull and low,'}, {'start': '483.200', 'end': '486.033', 'text': 'and there is basically no extra aftersound.'}, {'start': '486.633', 'end': '489.166', 'text': 'But other metals are different.  If'}, {'start': '489.400', 'end': '492.500', 'text': 'we drop it from a higher place, the'}, {'start': '493.200', 'end': '496.366', 'text': 'sound will be clearer and sharper,'}, {'start': '496.366', 'end': '498.466', 'text': 'and the reverberation will be longer and the'}, {'start': '498.500', 'end': '500.433', 'text': 'sound will be particularly loud. To distinguish the authenticity of gold by listening to the sound, you'}, {'start': '502.666', 'end': '505.066', 'text': 'need a certain amount of experience'}, {'start': '505.066', 'end': '507.500', 'text': 'and keen hearing.'}, {'start': '507.966', 'end': '508.700', 'text': 'In addition,'}, {'start': '512.400', 'end': '514.900', 'text': 'there is a certain degree of difference in the sound of gold of different purities. The'}, {'start': '516.433', 'end': '519.833', 'text': 'sound produced by different purities also has a little deviation.'}, {'start': '519.900', 'end': '523.233', 'text': 'Generally, real gold with a slightly lower purity,'}, {'start': '523.266', 'end': '524.833', 'text': 'such as 18K, has a gold'}, {'start': '525.100', 'end': '527.800', 'text': 'content of 75%.'}, {'start': '527.900', 'end': '531.466', 'text': 'Due to the addition of other alloy components, the'}, {'start': '531.500', 'end': '533.300', 'text': 'hardness is relatively increased and the'}, {'start': '533.366', 'end': '535.100', 'text': 'density is also changed.'}, {'start': '535.366', 'end': '538.000', 'text': 'When it falls to the ground or receives an impact, the'}, {'start': '538.000', 'end': '540.900', 'text': 'sound produced is also duller,'}, {'start': '541.166', 'end': '545.100', 'text': 'but it is slightly crisper than pure gold, and the'}, {'start': '545.100', 'end': '547.433', 'text': 'reverberation is slightly longer.'}, {'start': '547.566', 'end': '548.700', 'text': 'So, the'}, {'start': '549.000', 'end': '550.833', 'text': 'sound is'}, {'start': '551.033', 'end': '554.100', 'text': 'also affected by the purity of gold.'}, {'start': '554.166', 'end': '557.400', 'text': 'Not all gold sounds have the'}, {'start': '557.400', 'end': '559.100', 'text': 'same characteristics.'}, {'start': '559.366', 'end': '561.966', 'text': 'In fact, in addition to the above techniques, there is'}, {'start': '562.200', 'end': '564.900', 'text': 'another way to identify gold, which is to'}, {'start': '564.966', 'end': '566.900', 'text': 'look at the steel stamp on it.'}, {'start': '567.466', 'end': '568.800', 'text': 'Generally, we'}, {'start': '568.800', 'end': '572.200', 'text': 'can observe the steel stamp on the gold to'}, {'start': '572.200', 'end': '574.766', 'text': 'help identify the authenticity of gold.'}, {'start': '575.266', 'end': '578.433', 'text': 'Formal gold jewelry usually has a steel stamp,'}, {'start': '578.500', 'end': '582.100', 'text': 'and common steel stamp marks include pure gold,'}, {'start': '582.233', 'end': '586.966', 'text': 'pure gold 999AU 999G999.'}, {'start': '587.833', 'end': '590.700', 'text': 'These marks indicate the purity of gold.'}, {'start': '590.866', 'end': '591.433', 'text': 'However, it is also risky to rely'}, {'start': '591.433', 'end': '595.600', 'text': 'solely on the steel stamp to identify the authenticity of gold.'}, {'start': '597.066', 'end': '598.566', 'text': 'Why do I say this?'}, {'start': '599.000', 'end': '601.433', 'text': 'Because some illegal merchants'}, {'start': '601.433', 'end': '603.500', 'text': 'may forge steel stamps. It is'}, {'start': '604.066', 'end': '606.866', 'text': 'difficult for ordinary people to tell whether it is real or fake,'}, {'start': '607.200', 'end': '611.033', 'text': 'so it is best to purchase through formal channels'}, {'start': '611.033', 'end': '613.500', 'text': 'and also check its certificate.'}, {'start': '613.600', 'end': '617.566', 'text': 'Buy gold from a regular and well-known gold brand,'}, {'start': '617.800', 'end': '622.600', 'text': 'and check the relevant quality certificates and appraisal reports.'}, {'start': '622.766', 'end': '625.166', 'text': 'Generally, regular appraisal certificates'}, {'start': '625.200', 'end': '627.700', 'text': 'include the purity and weight of gold,'}, {'start': '627.700', 'end': '630.433', 'text': 'appraisal agency and other information.'}, {'start': '630.700', 'end': '633.466', 'text': 'If the'}, {'start': '633.500', 'end': '636.633', 'text': 'place of purchase cannot provide the appraisal certificate when we buy gold,'}, {'start': '636.866', 'end': '639.766', 'text': 'or the purchase channel is unreliable,'}, {'start': '639.766', 'end': '641.266', 'text': 'we should be more careful and'}, {'start': '641.266', 'end': '643.366', 'text': 'stay away from such gold jewelry.'}, {'start': '643.366', 'end': '644.633', 'text': 'The farther the better.'}, {'start': '644.800', 'end': '646.766', 'text': 'So today, I mainly shared with you'}, {'start': '646.766', 'end': '649.566', 'text': 'a few tips on how to distinguish the authenticity of gold.'}, {'start': '649.566', 'end': '649.900', 'text': 'At the same time, I'}, {'start': '649.900', 'end': '652.866', 'text': "hope that today's sharing can be helpful to you."}, {'start': '653.000', 'end': '655.566', 'text': 'So this issue of video sharing ends here. See'}, {'start': '655.566', 'end': '657.833', 'text': 'you in the next video. Bye.'}]